Gaya APA
William C, Whitman. (2009).
Refrigeration & Air conditioning technology (6th.ed).
Singapore:
Delmar Cengage Learning.
Gaya Chicago
William C, Whitman.
Refrigeration & Air conditioning technology.
6th.ed
Singapore:
Delmar Cengage Learning,
2009.
Text.
Gaya MLA
William C, Whitman.
Refrigeration & Air conditioning technology.
6th.ed
Singapore:
Delmar Cengage Learning,
2009.
Text.
Gaya Turabian
William C, Whitman.
Refrigeration & Air conditioning technology.
6th.ed
Singapore:
Delmar Cengage Learning,
2009.
Print.