Gaya APA
BUTLER, J. DONALD. (1951).
FOUR PHILOSOPHIES .
NEW YORK,NEW YORK:
HARPER AND BROTHERS.
Gaya Chicago
BUTLER, J. DONALD.
FOUR PHILOSOPHIES.
NEW YORK,NEW YORK:
HARPER AND BROTHERS,
1951.
Text.
Gaya MLA
BUTLER, J. DONALD.
FOUR PHILOSOPHIES.
NEW YORK,NEW YORK:
HARPER AND BROTHERS,
1951.
Text.
Gaya Turabian
BUTLER, J. DONALD.
FOUR PHILOSOPHIES.
NEW YORK,NEW YORK:
HARPER AND BROTHERS,
1951.
Print.