By Toro Vargas, Cirilo,.
San Juan Sociedad de Bibliotecarios de Puerto Rico 1991 .
[4], 24 p. 28 cm..

By Jean, Nancy Johnson..
Lancaster, PA Technomic Publishing Co. 1997 1566764769

By Green, James E..
Lancaster, PA Technomic Publ. Co. 1996 .
v;139 p. 1566763711

By Rivera Ramos, Alba Nydia.
Río Piedras, P.R. Editorial Edil 2001 .
369 p. 21 cm..
1-881725-76-6 (pbk.)

By Toro Vargas, Cirilo,.
Ponce, PR [s.n.] 2002 .
1 v. (various pagings) 28 cm..

By Toro Vargas, Cirilo,.
Ponce, PR [s.n.] 2002 .
computer optical disc 4 3/4 in..