Non abbiamo ancora una biografia di Gary W. Piggrem.
Pubblicato in Inglese
Per saperne di più: Open Library (si apre in una nuova scheda)

Adjustment and Growth : The Challenges of Life
1999
(WCS) Psychology In Action - DeVry
2006
Test Item File Psychology an Introduction
2005
Test Bank Two
1997

Self-Scoring Study Guide to Accompany Adjustment and Growth
1994

Self-Scoring Study Guide and Student Activities Manual to Accompany Adjustment and Growth
1998

Instructor's manual / test bank to accompany Psychology and the challenges of life
1989