APA Style
Kotler, Philip; Gary Amstrong. (1991).
Marketing : An Introduction 3rd edition .
:
.
Chicago Style
Kotler, Philip; Gary Amstrong.
Marketing : An Introduction 3rd edition.
:
,
1991.
.
MLA Style
Kotler, Philip; Gary Amstrong.
Marketing : An Introduction 3rd edition.
:
,
1991.
.
Turabian Style
Kotler, Philip; Gary Amstrong.
Marketing : An Introduction 3rd edition.
:
,
1991.
.