Central American refugees : regional conditions and prospects and potential impact on the United States : report to the Congress of the United States /

Item 546-D (microfiche)

Ridpath's history of the world : being an account of the ethnic origin, primitive estate, early migrations, social conditions and present promise of the principal families of men /

Lettered on cover: Mankind.

The Springfield survey : a study of social conditions in an American city /

"Findings issued in three volumes which report on nine principal fields of investigation"