TY  - BOOK
AU  - Back, Ken.
TI  - Assertiveness at work
SN  - 0077073770 (hardback) : | 0077073789 (paperback) :
AV  - HF5549.C6 B23 1990. 
PY  - 1991///
KW  -  Assertiveness (Psychology)
KW  -   Assertiveness training
ER  -