Dyfyniad APA

Ferguson, L. (1971). Contradiction and mental process. Christopher Pub. House.

Dyfyniad Arddull Chicago

Ferguson, Leland. Contradiction and Mental Process. North Quincy, Mass.: Christopher Pub. House, 1971.

Dyfyniad MLA

Ferguson, Leland. Contradiction and Mental Process. Christopher Pub. House, 1971.

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