APA Style
Kohnke, Helmut, Betrand, Anson R.. (1959).
Soil conservation .
Bombay:
McGraw-Hill Book Company.
Chicago Style
Kohnke, Helmut, Betrand, Anson R..
Soil conservation.
Bombay:
McGraw-Hill Book Company,
1959.
Buku Teks.
MLA Style
Kohnke, Helmut, Betrand, Anson R..
Soil conservation.
Bombay:
McGraw-Hill Book Company,
1959.
Buku Teks.
Turabian Style
Kohnke, Helmut, Betrand, Anson R..
Soil conservation.
Bombay:
McGraw-Hill Book Company,
1959.
Buku Teks.