TY  - BOOK
TI  - Personal effectiveness: guiding people to assert themselves andimprove their social skills 
PY  - 1975///
CY  - Champaign, Ill.
PB  - Research Press
KW  - ფსიქოლოგია
KW  - ზოგადი ფსიქოტექნიკა
ER  -