TY  - BOOK
AU  - Stevenson,Robert F.
TI  - Population and political systems in Tropical Africa
U1  - 320.1550967 
PY  - 1968///
CY  - New York
PB  - Columbia University Press
KW  - Demographic surveys
KW  - Africa, Sub Saharan
KW  - Population
N1  - Includes bibliographical references and index
ER  -