Dyfyniad APA

ALEXANDER, L. (1980). Mainline: Beginers B (student' book). Longman.

Dyfyniad Arddull Chicago

ALEXANDER, L.G. Mainline: Beginers B (student' Book). London: Longman, 1980.

Dyfyniad MLA

ALEXANDER, L.G. Mainline: Beginers B (student' Book). Longman, 1980.

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