Cita APA (7a ed.)

Cox, J. F., & Jackson, L. E. (1937). Crops;a sel-teaching course,base on crop management and soil conservation. John Wiley.

Cita Chicago Style (17a ed.)

Cox, Joseph F., y Lyman E. Jackson. Crops;a Sel-teaching Course,base on Crop Management and Soil Conservation. Washington: John Wiley, 1937.

Cita MLA (8a ed.)

Cox, Joseph F., y Lyman E. Jackson. Crops;a Sel-teaching Course,base on Crop Management and Soil Conservation. John Wiley, 1937.