Penggayaan APA
Allen, Peter. (1988).
Selling (4, cet. 1).
Singapore:
Prentice-Hall.
Chicago Style
Allen, Peter.
Selling.
4, cet. 1
Singapore:
Prentice-Hall,
1988.
Buku.
MLA Style
Allen, Peter.
Selling.
4, cet. 1
Singapore:
Prentice-Hall,
1988.
Buku.
Turabian Style
Allen, Peter.
Selling.
4, cet. 1
Singapore:
Prentice-Hall,
1988.
Buku.