TY  - BOOK
AU  - Mussen, Paul Henry.
TI  - The psychological development of the child
SN  - 0137323131
U1  - 136.7 19
PY  - 1973///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Child psychology
KW  - Child development
N1  - Includes bibliographical references and index
ER  -