Penggayaan APA
BYRNS, RALPHT. (1981).
Economics .
Illinois:
Scott Foresman.
Chicago Style
BYRNS, RALPHT.
Economics.
Illinois:
Scott Foresman,
1981.
Text.
MLA Style
BYRNS, RALPHT.
Economics.
Illinois:
Scott Foresman,
1981.
Text.
Turabian Style
BYRNS, RALPHT.
Economics.
Illinois:
Scott Foresman,
1981.
Print.