Gaya APA
DURAND,Loyal. (1961).
Economic Geography .
New York:
Thomas Y.Crowel Company.
Gaya Chicago
DURAND,Loyal.
Economic Geography.
New York:
Thomas Y.Crowel Company,
1961.
Teks.
Gaya MLA
DURAND,Loyal.
Economic Geography.
New York:
Thomas Y.Crowel Company,
1961.
Teks.
Gaya Turabian
DURAND,Loyal.
Economic Geography.
New York:
Thomas Y.Crowel Company,
1961.
Teks.