Gaya APA
Czepiel, John A. (1992).
Competitive marketing strategy .
New Jersey:
Prentice-Hall.
Gaya Chicago
Czepiel, John A.
Competitive marketing strategy.
New Jersey:
Prentice-Hall,
1992.
Buku.
Gaya MLA
Czepiel, John A.
Competitive marketing strategy.
New Jersey:
Prentice-Hall,
1992.
Buku.
Gaya Turabian
Czepiel, John A.
Competitive marketing strategy.
New Jersey:
Prentice-Hall,
1992.
Buku.