Gaya APA
William B. Martin, Ph.D. ().
Quality Customer Service .
:
PPm.
Gaya Chicago
William B. Martin, Ph.D.
Quality Customer Service.
:
PPm,
.
Text.
Gaya MLA
William B. Martin, Ph.D.
Quality Customer Service.
:
PPm,
.
Text.
Gaya Turabian
William B. Martin, Ph.D.
Quality Customer Service.
:
PPm,
.
Print.