Gaya APA
Churchill, Gilbert A.. (1987).
Marketing research : methodological foundations 4th ed. (ed. 4).
America:
The Dryden Press International Edition.
Gaya Chicago
Churchill, Gilbert A..
Marketing research : methodological foundations 4th ed..
ed. 4
America:
The Dryden Press International Edition,
1987.
Text.
Gaya MLA
Churchill, Gilbert A..
Marketing research : methodological foundations 4th ed..
ed. 4
America:
The Dryden Press International Edition,
1987.
Text.
Gaya Turabian
Churchill, Gilbert A..
Marketing research : methodological foundations 4th ed..
ed. 4
America:
The Dryden Press International Edition,
1987.
Print.