Gaya APA
Wrigley, E. A. (Edward Anthony),. (1969).
Population and history .
New York:
McGraw-Hill.
Gaya Chicago
Wrigley, E. A. (Edward Anthony),.
Population and history.
New York:
McGraw-Hill,
1969.
Teks.
Gaya MLA
Wrigley, E. A. (Edward Anthony),.
Population and history.
New York:
McGraw-Hill,
1969.
Teks.
Gaya Turabian
Wrigley, E. A. (Edward Anthony),.
Population and history.
New York:
McGraw-Hill,
1969.
Teks.