APA Style
Tracy, Brian. (2013).
Motivation .
United State of America:
Amacom.
Chicago Style
Tracy, Brian.
Motivation.
United State of America:
Amacom,
2013.
Buku Teks.
MLA Style
Tracy, Brian.
Motivation.
United State of America:
Amacom,
2013.
Buku Teks.
Turabian Style
Tracy, Brian.
Motivation.
United State of America:
Amacom,
2013.
Buku Teks.