APA Style
al., N, T, T, E. (2006).
The Strategy and Tactics of Pricing: A Guide to Growing More Profitably .
Singapore:
PRENTICE HALL.
MLA Style
al., Nagle., Thomas, T., Et.
"The Strategy and Tactics of Pricing: A Guide to Growing More Profitably".
Singapore:
PRENTICE HALL,
2006.
Buku.