Gaya APA
COOK, T, A., GIERSDORF, J, R.
(2010).
The Art of Mastering Sales Management
.
London:
CRC Press.
Gaya MLA
COOK, Thomas, A., GIERSDORF, Jens, Richard.
"The Art of Mastering Sales Management".
London:
CRC Press,
2010.
Buku Teks.