By Echevarría Santiago, José Rafael,.
Ponce, P.R. Universidad Católica de Puerto Rico; Madrid : G. del Toro 1970 .
224 p. : ill.

By Popper, Karl R..
Buenos Aires Editorial Paidos 1967 .
2 tomos

By Popper, Karl R..
New york Harper Torchbooks | (1962) .
2 v. 21 cm..

By Popper, Karl R..
Oxford Clarendon Press 1972 .
x, 380 p. 22 cm..
0198243707

By Popper, Karl R..
New York Harper & Row 1961 .
x, 166 p.

By Kreuzer, Franz..
Madrid Tecnos 1988 .
158 p. , Translation of: Offene Gesellschaft, offenes Universum. | Sociedad abierta, universo abierto / traducción, Salvador Mas Torres -- Tolerancia y responsabilidad intelectual / traducción, Angeles Jiménez Perona. 18 cm..
8430911057

By Popper, Karl R..
Madrid Editorial Tecnos 1974 .
342 p. , Translation of Objective knowledge; an evolutionary approach. 24 cm..
8430904883

By Bunge, Mario Augusto.
[New York] | London Free Press of Glencoe | Collier-Macmillan, Ltd. 1964 .
xv, 480 p. 25 cm..

By Popper, Karl R..
Barcelona : Editorial Labor, 1980 .
xviii, 667 p. : , Translation of: The self and its brain. 22 cm..
0387083073 | 8433517120

By Popper, Karl R..
New York Basic Books 1959 .
480 p. :

By Popper, Karl R..
New York Basic Books 1965 .
xiii, 417 p. , Includes technical notes and indexes. | Includes "Preface to the Second Edition." 24 cm..

By Popper, Karl R..
Madrid Taurus Ediciones, S. A 1973 .
181 p. , Translation of: The poverty of historicism.

By Echevarría Santiago, José Rafael,.
Madrid G. Del Toro 1970 .
224 p.

By Popper, Karl R..
Barcelona Paidós 1994 .
314 p. , Translation of: In search of a better world. 24 cm..
8475099874 (pbk.)

By Stove, D. C..
Madrid Tecnos 1995 .
175 p. , Translation of: Popper and after. Four modern irrationalists. 22 cm..
8430926704

By Popper, Karl R..
Barcelona : Ediciones Paidos, 1994 .
287 p. ; 24 cm..
844930167X

By Popper, Karl R..
Barcelona Ediciones Paidós 1957 .
693 p. , Translation of : The open society an its enemies. 22 cm..
8475090990

By Popper, Karl R..
Madrid Tecnos 1994 .
287 p. , Título original: Unended Quest. An Intellectual Autobiography. 22 cm..
8430907238

By Popper, Karl R..
Madrid Editorial Tecnos 1997 .
451 p. , Translation of: The logic of scientific discovery. 24 cm..

By Popper, Karl R..
Barcelona Paidós 1994 .
314 p. , Translation of: In search of a better world. 24 cm..
8475099874 (pbk.)

By Popper, Karl R..
Temas Grupo Editorial, SRL 1998 .
p. cm. 9879164210

By Popper, Karl R..
Madrid Editorial Tecnos 1967 .
451 p. , Translation of: The logic of scientific discovery. 24 cm..
8430907114

By Popper, Karl R..
Barcelona : Editorial Paidós, 1989 .
701 p. , Translation of : The Open Society and its Enemies. 8475090990

By Popper, Karl R..
Madrid Editorial Tecnos 1992 .
342 p. , Translation of Objetive Knowledge; an evolutionary approach. 24 cm..
8430904883

By Marcuse, Herbert,.
Salamanca : Ediciones Sígueme, 1976 .
136 p. 18 cm..
8430106871