Gaya APA

Mohler, C, L., Johnson, S, E. (2009). Crop Rotation On Organic Farms: A Planning Manual . New York: Natural Resource, Agriculture, and Engineering Service (NRAES).

Gaya MLA

Mohler, Charles, L.., Johnson, Sue, Ellen. "Crop Rotation On Organic Farms: A Planning Manual". New York: Natural Resource, Agriculture, and Engineering Service (NRAES), 2009. e-book.