Dyfyniad APA

Smith, C. W. (2004). Corn: Origin, history, technology and production. New Jersey: John Wiley & Sons, Inc.

Dyfyniad Arddull Chicago

Smith, C. Wayne. Corn: Origin, History, Technology and Production. New Jersey: John Wiley & Sons, Inc, 2004.

Dyfyniad MLA

Smith, C. Wayne. Corn: Origin, History, Technology and Production. New Jersey: John Wiley & Sons, Inc, 2004.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.