Gaya APA
Armstrong, Herbert W.. (1968).
The Seven Laws Of Success .
California:
Ambassador College Press.
Gaya Chicago
Armstrong, Herbert W..
The Seven Laws Of Success.
California:
Ambassador College Press,
1968.
Text.
Gaya MLA
Armstrong, Herbert W..
The Seven Laws Of Success.
California:
Ambassador College Press,
1968.
Text.
Gaya Turabian
Armstrong, Herbert W..
The Seven Laws Of Success.
California:
Ambassador College Press,
1968.
Print.