Gaya APA
GRESHES, W., PONZIANI, R, [.
(2007).
The best damn sales book ever :
.
Jakarta:
Elex Media Komputindo.
Gaya MLA
GRESHES, Warren., PONZIANI, Riga, [penerj.].
"The best damn sales book ever :".
Jakarta:
Elex Media Komputindo,
2007.
Buku.