Gaya APA
Walker, Orville C. (1992).
Marketing Strategy: Planning,and Implementation (1).
Boston:
Irwin.
Gaya Chicago
Walker, Orville C.
Marketing Strategy: Planning,and Implementation.
1
Boston:
Irwin,
1992.
Text.
Gaya MLA
Walker, Orville C.
Marketing Strategy: Planning,and Implementation.
1
Boston:
Irwin,
1992.
Text.
Gaya Turabian
Walker, Orville C.
Marketing Strategy: Planning,and Implementation.
1
Boston:
Irwin,
1992.
Print.