By Nachbin, Leopoldo.
Washington : OEA, 1976

By Gatica, Juan Antonio.
Washington : OEA, 1977

By Nieto, José I..
Washington : OEA, 1978

By Engel, Alejandro B..
Washington : OEA, 1978

By Michelow, Jaime.
Washington : OEA, 1980

By Merklen, Héctor A..
Washington : OEA, 1979

By Piscoya, H..
Washington : OEA, 1981

By Babini, José.
Washington : OEA, 1967

By Toranzos, Fausto A..
Washington : OEA, 1976

By Bromley, Allan.
Washington : OEA, 1965 .
v, 51 p. : 23 cm.

By Cernuschi, Félix.
Washington : OEA, 1974 .
vii, 116 p. : 23 cm.

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.