A comparison of different survey techniques for obtaining vital data in a developing country /

por Sabagh, Georges
Publicado 1973

Evaluation of birth statistics derived retrospectively from fertility histories reported in a national population survey : United States, 1945-1964 /

por Sirken, Monroe G.
Publicado 1973

Beyond the Ethnic Enclave Economy.

por Light, Ivan

Introduction from the Special Issue Editor : The Sociology of Inmigration, Race, and Ethnicity in America.

por Pedraza, Silvia