TY  - BOOK
AU  - Trevathan Wenda R.
TI  - Human Birth An Evolutionary perspective
SN  - 0202020290
U1  - 618.4 
PY  - 1987///
CY  - New York
PB  - Aldine de Gruyter
KW  - Childbirth
KW  - Mother and child
KW  - Human behaviour
KW  - Human evolution
N1  - Includes bibliographical references and index
ER  -