Gaya APA
Collin, R. (2009).
Dealing with angry people:rahasia menenangkan emosi seseorang / Robert Collin .
Hoboken, NJ:
Prestasi Pustaka Publisher.
Gaya MLA
Collin, Robert.
"Dealing with angry people:rahasia menenangkan emosi seseorang / Robert Collin".
Hoboken, NJ:
Prestasi Pustaka Publisher,
2009.
Text.