Dyfyniad APA
Whitford, F. (2013). For the good of the farmer: A biography of John Harrison Skinner, Dean of Purdue agriculture. Purdue University Press.
Dyfyniad Arddull Chicago
Whitford, Fred. For the Good of the Farmer: A Biography of John Harrison Skinner, Dean of Purdue Agriculture. West Lafayette, Indiana: Purdue University Press, 2013.
Dyfyniad MLA
Whitford, Fred. For the Good of the Farmer: A Biography of John Harrison Skinner, Dean of Purdue Agriculture. Purdue University Press, 2013.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.