Gaya APA
Starr, Philip C.. (1978).
Economics : Principles in Action (Ed. 2).
California:
Wadsworth Publishing Company.
Gaya Chicago
Starr, Philip C..
Economics : Principles in Action.
Ed. 2
California:
Wadsworth Publishing Company,
1978.
Text.
Gaya MLA
Starr, Philip C..
Economics : Principles in Action.
Ed. 2
California:
Wadsworth Publishing Company,
1978.
Text.
Gaya Turabian
Starr, Philip C..
Economics : Principles in Action.
Ed. 2
California:
Wadsworth Publishing Company,
1978.
Print.