Dyfyniad APA

Waring, B., & Jamall, M. (2006). The bear's mouth. Boston: Thomson ELT.

Dyfyniad Arddull Chicago

Waring, Bob., và Maurice Jamall. The Bear's Mouth. Boston: Thomson ELT, 2006.

Dyfyniad MLA

Waring, Bob., và Maurice Jamall. The Bear's Mouth. Boston: Thomson ELT, 2006.

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