Dyfyniad APA

Byrd, P. (1995). Material writer's guide. Boston, M: Heinle & Hainle Publishers.

Dyfyniad Arddull Chicago

Byrd, Patricia. Material Writer's Guide. Boston, M: Heinle & Hainle Publishers, 1995.

Dyfyniad MLA

Byrd, Patricia. Material Writer's Guide. Boston, M: Heinle & Hainle Publishers, 1995.

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