Dyfyniad APA

Walker, G. (2013). Antarctica: An intimate portrait of a mysterious continent. Boston: Houghton Mifflin Harcourt Pub..

Dyfyniad Arddull Chicago

Walker, Gabrielle. Antarctica: An Intimate Portrait of a Mysterious Continent. Boston: Houghton Mifflin Harcourt Pub., 2013.

Dyfyniad MLA

Walker, Gabrielle. Antarctica: An Intimate Portrait of a Mysterious Continent. Boston: Houghton Mifflin Harcourt Pub., 2013.

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