Institut panaméricain de géographie et d'histoire (Mexico)

Status and trends of geography in the United States, 1957-1960 , a report prepared for the Commission on geography, Pan American Institute of geography and history, by the Committee of the Association of American geographers on the status and trands of geography in the United states, 1957-1960. Published by the Association of American geographers in collaboration with the National academy of sciences, National research council

1961