Dyfyniad APA

(1978). Grammar & composition: Book one: tests. U.S.A: A Beka Book.

Dyfyniad Arddull Chicago

Grammar & Composition: Book One: Tests. U.S.A: A Beka Book, 1978.

Dyfyniad MLA

Grammar & Composition: Book One: Tests. U.S.A: A Beka Book, 1978.

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