TY  - BOOK
AU  - Mussen, Paul  Henry
TI  - The psychological development of the child
U1  - 155.4 
PY  - 1979///
CY  - Englewood Cliff
PB  - N.J. Prentice-Hall
KW  - Child psychology
KW  - Child development
N1  - Includes bibliographical references
ER  -