TY  - BOOK
AU  - Jan M H. Van de Koppel
TI  - Developmental study of the biaka pygmies and the bangandu
SN  - 90-265-0519-1
U1  - 572.909675 
PY  - 1983///
CY  - Lisse
PB  - Swets and Zeitlinger
ER  -