32 p.

Coordenador de Assuntos Internacionais Ed. ,// 10 p.

Escritorio dos Assuntos Interamericanos Ed. ,// 19 p.

American Council on Education Ed. ,// 36 p.

OPAS/OMS Ed. ,// 16 p.

Escritorio de Assuntos Interamericanos Ed. ,// 34 p.

Crane, Russak & Company Ed. ,// 30 p.

International Labor Rights Education an Research Fund Ed. ,// 39 p.

Pan American Union Ed. ,// 31 p.

Superintendent of Documents, U.S. Government Printing Office Ed. ,// 53 p.