APA Style
Huntington, Ellsworth. (1947).
Principles of economic geography .
:
.
Chicago Style
Huntington, Ellsworth.
Principles of economic geography.
:
,
1947.
.
MLA Style
Huntington, Ellsworth.
Principles of economic geography.
:
,
1947.
.
Turabian Style
Huntington, Ellsworth.
Principles of economic geography.
:
,
1947.
.