APA Style
Ferguson, John H. (1961).
The american federal goverment .
America:
McGraw-Hill Companies.
Chicago Style
Ferguson, John H.
The american federal goverment.
America:
McGraw-Hill Companies,
1961.
Referensi.
MLA Style
Ferguson, John H.
The american federal goverment.
America:
McGraw-Hill Companies,
1961.
Referensi.
Turabian Style
Ferguson, John H.
The american federal goverment.
America:
McGraw-Hill Companies,
1961.
Referensi.