Cita APA (7a ed.)

Kral, D. M. (1984). Organic farming: Current technology and its role in a sustainable agriculture, proceedings. American Society of Agronomy ; Crop Science Society of America ; Soil Science Society of America.

Cita Chicago Style (17a ed.)

Kral, David M. Organic Farming: Current Technology and Its Role in a Sustainable Agriculture, Proceedings. Madison: American Society of Agronomy ; Crop Science Society of America ; Soil Science Society of America, 1984.

Cita MLA (8a ed.)

Kral, David M. Organic Farming: Current Technology and Its Role in a Sustainable Agriculture, Proceedings. American Society of Agronomy ; Crop Science Society of America ; Soil Science Society of America, 1984.