Gaya APA
Cunliffe, Marcus. (1972).
American presidents and the presidency .
Amerika Serikat:
The Fontana Library.
Gaya Chicago
Cunliffe, Marcus.
American presidents and the presidency.
Amerika Serikat:
The Fontana Library,
1972.
Text.
Gaya MLA
Cunliffe, Marcus.
American presidents and the presidency.
Amerika Serikat:
The Fontana Library,
1972.
Text.
Gaya Turabian
Cunliffe, Marcus.
American presidents and the presidency.
Amerika Serikat:
The Fontana Library,
1972.
Print.