Gaya APA
Davidson, Jeff. (1997).
The Complete Idiot's Guide to Assertiveness .
New York:
Alpha Books.
Gaya Chicago
Davidson, Jeff.
The Complete Idiot's Guide to Assertiveness.
New York:
Alpha Books,
1997.
.
Gaya MLA
Davidson, Jeff.
The Complete Idiot's Guide to Assertiveness.
New York:
Alpha Books,
1997.
.
Gaya Turabian
Davidson, Jeff.
The Complete Idiot's Guide to Assertiveness.
New York:
Alpha Books,
1997.
.