Penggayaan APA
Sigit, Soehardi . (1976).
Marketing praktis .
Yogyakarta:
Gama Press.
Chicago Style
Sigit, Soehardi .
Marketing praktis.
Yogyakarta:
Gama Press,
1976.
Buku.
MLA Style
Sigit, Soehardi .
Marketing praktis.
Yogyakarta:
Gama Press,
1976.
Buku.
Turabian Style
Sigit, Soehardi .
Marketing praktis.
Yogyakarta:
Gama Press,
1976.
Buku.