APA
(1939). Soil Science Society of America Proceedings. : Soil Science Society of America Florida.
Chicago
1939. Soil Science Society of America Proceedings. : Soil Science Society of America Florida.
Harvard
(1939). Soil Science Society of America Proceedings. : Soil Science Society of America Florida.
MLA
Soil Science Society of America Proceedings. : Soil Science Society of America Florida. 1939.