By Núñez Molina, Mario A..
San Juan, P.R. Editorial Librotex, Inc. 1989 .
ix, 62 p. 0934369380

By Flores, Francisco J..
San Juan, Puerto Rico : Edtorial Librotex Inc. , 1988 .
419 p. 09434369283

By Coya de Barbosa Liliam..
Puerto Rico Editorial Librotex 1986 .
v. , Includes bibliographical references. 28 cm..
0934369062 | 0934369070

By Canetti-Mirabal, Ileana..
Río Piedras, P.R. Editorial Librotex 1988 .
xv, 163 p. , Includes index. 25 cm..
0934369305

By Guevara, Carlos..
San Juan, Puerto Rico Editorial Librotex | Decanato de Asuntos Académicos 1989 .
viii, 319 p. 22 cm..
0934369399

By Rosa, Miguel A..
Río Piedras, P.R. Editorial Librotex 1989 .
100 p. 23 cm..
0934369356

By Morán Arce, Lucas..
San Juan, P. R. Librotex 1986 .
xii, 401 p. 26 cm..

By Peña Beltrán, Lydia..
San Juan, P.R. : Librotex, 1986 .
206 pages : 23 cm..
0934369054 | 9780934369053