TY  - BOOK
AU  - Beck, Robert C
TI  - Motivation : theories and principles
SN  - 9780131114456
SN  - 200300937
U1  - 153.8 BEC 
PY  - 2004///
CY  - Upper Saddle River, NJ
PB  - Pearson/Prentice Hall
KW  - Motivation (Psychology)
N1  - Includes bibliographical references (p. [426]-456) and indexes
ER  -