By Falicov, Leopoldo.
Washington : OEA, 1967 .
vii, 70 p. : 23 cm.

By Cernuschi, Félix.
Washington : OEA, 1969

By Bemski, George.
Washington : OEA, 1970 .
v, 60 p. : 23 cm.

By Alba Andrade, Fernando.
Washington : OEA, 1971

By Rojo Asenjo, Onofre.
Washington : OEA, 1971 .
v, 52 p. : 23 cm.

By Mejia, Gastón R..
Washington : OEA, 1973 .
v, 75 p. : 23 cm.

By Jaschek, Carlos.
Washington : OEA, 1974 .
vi, 108 p. : 23 cm .

By Bressan, Oscar J..
Washington : OEA, 1975

By Garavaglia, Mario.
Washington : OEA, 1976 .
v. 118 p. : 23 cm.

By Bristoti, Anildo.
Washington : OEA, 1980 .
vi, 102 p. : , Contiene apéndices. 23 cm.
0827011261

By Rodriguez, Antonio E..
Washington : OEA, 1979 .
vi, 96 p. : 23 cm.