Dyfyniad APA

O'neill, R. (1982). Kernel Two: Teacher's Book. London: Longman.

Dyfyniad Arddull Chicago

O'neill, Robert. Kernel Two: Teacher's Book. London: Longman, 1982.

Dyfyniad MLA

O'neill, Robert. Kernel Two: Teacher's Book. London: Longman, 1982.

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