SCRIMSHAW, SUSAN CROSBY CULTURE, ENVIRONMENT AND FAMILY SIZE : A STUDY OF URBAN IN-MIGRANTS IN GUAYAQUIL - S.E. - ANN ARBOR Estados Unidos UNIVERSITY MICROFILMS INTERNATIONAL 1974 - 157 LCCN: 3348 Subjects--Topical Terms: MIGRACIONES RURALESMIGRANTES-GUAYAQUIL Dewey Class. No.: 304.8866323