TY  - BOOK
AU  - Lefton,Lester A.
AU  - Valvatne,Laura
TI  - Mastering psychology
SN  - 0205106269 (pbk.)
U1  - 150 19
PY  - 1988///
CY  - Boston
PB  - Allyn and Bacon
KW  - Psychology
N1  - Includes indexes; Bibliogr.: p. 649-677
ER  -