APA Style
HUNTINGTON, ELLSWORTH. (1951).
PRINCIPLES OF HUMAN GEOGRAPHY .
NEW YORK:
.
Chicago Style
HUNTINGTON, ELLSWORTH.
PRINCIPLES OF HUMAN GEOGRAPHY.
NEW YORK:
,
1951.
Text.
MLA Style
HUNTINGTON, ELLSWORTH.
PRINCIPLES OF HUMAN GEOGRAPHY.
NEW YORK:
,
1951.
Text.
Turabian Style
HUNTINGTON, ELLSWORTH.
PRINCIPLES OF HUMAN GEOGRAPHY.
NEW YORK:
,
1951.
Print.