APA Style
sigih, soehardi. (1987).
marketing praktis .
yogyakarta:
liberty.
Chicago Style
sigih, soehardi.
marketing praktis.
yogyakarta:
liberty,
1987.
Text.
MLA Style
sigih, soehardi.
marketing praktis.
yogyakarta:
liberty,
1987.
Text.
Turabian Style
sigih, soehardi.
marketing praktis.
yogyakarta:
liberty,
1987.
Print.