APA Style
Goulston, M., Ullmen, J. (2013).
Real Influence : Persuade Without Pushing and Gan Without Giving In .
Amerika:
Amacom.
MLA Style
Goulston, Mark., Ullmen, John.
"Real Influence : Persuade Without Pushing and Gan Without Giving In".
Amerika:
Amacom,
2013.
Text.