Cita APA (7a ed.)

DeGregori, T. R. (2004). Origins of the organic agriculture debate. Blackwell.

Cita Chicago Style (17a ed.)

DeGregori, Thomas R. Origins of the Organic Agriculture Debate. Iowa City: Blackwell, 2004.

Cita MLA (9a ed.)

DeGregori, Thomas R. Origins of the Organic Agriculture Debate. Blackwell, 2004.