By Buyse, R..
Barcelona Editorial Labor, S.A. 1937 .
xv, 433 p. , Includes index. | Translation of : L'experimentation en pédagogie.

By Sehling, Emil.
Barcelona | Buenos Aires Editorial Labor, s.a. 1933 .
203 p., 1 b. , At head of title: Dom dr. E. Sehling ... 19 cm..

By Dalla Chiara Scabia, Maria Luisa..
Barcelona Editorial Labor, S.A. 1976 .
178 p. 20 cm..

By Prüfer, Johannes.
Barcelona Editorial Labor, S. A. 1940 .
181 p.

By Levitt, Theodore.
Barcelona Editorial Labor, S.A. 1978 .
166 p.

By Chaunu, Pierre..
Barcelona Editorial Labor, S. A. 1972 .
339 p. , Traduccion por Ana María Mayench. | Titulo original: L'expansion européenne du XIIIe au XVe siècle.

By Wedewer, Rolf..
Barcelona Editorial Labor, S.A. 1973 .
155 p. , Translation of : Bildbegriffe.

By Lanson, G..
Barcelona Editorial Labor, S.A. 1956 .
xi, 908 p., [48 p. of plates] 22 cm..

By Rémondon, Roger..
Barcelona Editorial Labor, S.A. 1979 .
xix, 310 , Translation of : La crise de l'empire romain, de Marc-Aurèle a Anastase.

By Valbuena Prat, Angel.
Barcelona-Buenos Aires Editorial Labor, S.A. 1930 .
336 p., 1 b. , At head of title: Angel Valbuena.

By Crisógono de Jesús Sacramentado.
Barcelona Editorial Labor, s.a. 1946 .
233p. 1b. 18cm..

By Pérez de Urbel, Justo.
Barcelona [etc.] Editorial Labor, s.a. 1942 .
234 p. 1 b. 19 cm..

By Thomsen, Vilhelm Ludvig Peter.
Barcelona Editorial Labor, s.a. 1945 .
168 p. , Added title-page: Biblioteca de iniciacion cultural. | Translation of Sprogvidenskabens historie.

By Bondi, Hermann..
Editorial Labor S.A. Barcelona 1969 .
189p. 22cm..

By Araiz Martinez, Andrés..
Barcelona Editorial Labor, s.a. 1942 .
312 p. , At head of title: Andrés Araiz. | "Colección de obras polifónicas" (for 4-5 voices unaccompanied): p. [237]-312. 19 cm..

By Volbach, Fritz.
Barcelona Editorial Labor, S.A. 1932 .
400 p. , Translation of Das moderne orchestre. 18 cm..

By Jaspers, Karl,.
Barcelona : Editorial Labor, S. A. 1955 .
207 p. , Translation of : Die geistige Situation der Zeit.

By Backhouse, Hugo..
Barcelona Editorial Labor, s. a. 1962 .
258 p. , Translation of Among the gauchos. 23 cm..

By Vedel, Valdemar.
Barcelona Editorial Labor, S.A. 1948 .
v. 19 cm..

By Giménez Soler, Andrés.
Barcelona Editorial Labor, s.a. 1941 .
227 p. 19 cm..

By Zabala y Lera, Pío.
Barcelona Editorial Labor, s.a. 1955 .
522 p., [12] leaves of plates 19 cm..

By Ballesteros Gaibrois, Manuel.
Barcelona [etc.] Editorial Labor, s.a. 1943 .
232 p., 2 b. , First published 1936.

By Busse, Ludwig.
Barcelona | Buenos Aires Editorial Labor, S.A. 1927 .
195 p. , Translation of : Die weltanscouungen der grossen philosophen der neuzeit.

By Rémondon, Roger..
Barcelona Editorial Labor, S.A. 1979 .
xix, 310 , Translation of : La crise de l'empire romain, de Marc-Aurèle a Anastase.

By Ketchum, Richard M..
Barcelona Editorial Labor, s.a. 1963 .
435 p. 31 cm..

By Della Corte, Andrea.
Barcelona Editorial Labor, S.A. 1965 .
3 v. , Paged continuously. | Title of original work : Storia della musica. 26 cm..

By Levitt, Theodore.
Barcelona Editorial Labor, S.A. 1978 .
166 p.

Barcelona Editorial Labor, S. A. 1975 .
238 p. , Introd. signed: José María de Anzizu. | "Traducción: José M. de Anzizu, Marcelo Covián." 23 cm..

By Busse, Ludwig.
Barcelona | Buenos Aires Editorial Labor, S.A. 1949 .
197 p. , Translation of : Die weltanscouungen der grossen philosophen der neuzeit.

Barcelona Editorial Labor.S.A. 1963 .
403 p. , Includes index. 35 cm..