Penggayaan APA
GILL, RICHARD T. (1978).
Economics .
California:
Gnodyear Publishing Company Inc.
Chicago Style
GILL, RICHARD T.
Economics.
California:
Gnodyear Publishing Company Inc,
1978.
Text.
MLA Style
GILL, RICHARD T.
Economics.
California:
Gnodyear Publishing Company Inc,
1978.
Text.
Turabian Style
GILL, RICHARD T.
Economics.
California:
Gnodyear Publishing Company Inc,
1978.
Print.