Gaya APA
Posner, Richard. (1973).
The Seven-Ups .
USA:
Fawcett Crest Book.
Gaya Chicago
Posner, Richard.
The Seven-Ups.
USA:
Fawcett Crest Book,
1973.
Text.
Gaya MLA
Posner, Richard.
The Seven-Ups.
USA:
Fawcett Crest Book,
1973.
Text.
Gaya Turabian
Posner, Richard.
The Seven-Ups.
USA:
Fawcett Crest Book,
1973.
Print.