Gaya APA
Berry, L. Leonard. (1991).
Marketing Services Competing Through Quality (edisi 1).
America:
Companies.
Gaya Chicago
Berry, L. Leonard.
Marketing Services Competing Through Quality.
edisi 1
America:
Companies,
1991.
Text.
Gaya MLA
Berry, L. Leonard.
Marketing Services Competing Through Quality.
edisi 1
America:
Companies,
1991.
Text.
Gaya Turabian
Berry, L. Leonard.
Marketing Services Competing Through Quality.
edisi 1
America:
Companies,
1991.
Print.