TY  - BOOK
AU  - Mussen,Paul H.
TI  - Handbook of research methods in child development
U1  - 136.7018 19
PY  - 1960///
CY  - New York
PB  - John Wiley & Sons
KW  - Child psychology
KW  - Methodology
KW  - Psychology
KW  - Research
N1  - Contributors: Alfred L. Baldwin and others; Includes bibliography and index
ER  -