United Nations Educational, Scientific and Cultural Organization, Centro de Cooperacion Cientifica para America Latina 1956

v. 20

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United Nations Educational, Scientific and Cultural Organization, Centro de Cooperacion Cientifica para America Latina 1953

v. 2

Available at 1 libraries

Unesco. Centro de Cooperacion Cientifica Para America Latina [1950]-

America central. 1 v. , Argentina , Argentina. 3 v. , Bolivia , Brasil , Brasil. 3 v. , Chile. 1 v. , Colombia , Colombia 2. v. , Cuba. 1 v. , Ecuador. 1 v. , Mexico. 1 v. , Mexico. 2 v. , Mexico. 3 v. , Peru. 1 v. , Uruguay , Uruguay. 2 v. , Venezuela. 1 v. , Venezuela. 2 v.

Available at 5 libraries

by Luis Antonio Santaló ; in collaboration with M.O. González, Godofredo García, Rafael Laguardia

Unesco Science Cooperation Office for Latin America [19--]

Available at 1 libraries