Dyfyniad APA

Earle, S. A. (2014). Blue hope: Exploring and caring for earth's magnificent ocean. National Geographic.

Dyfyniad Arddull Chicago

Earle, Sylvia A. Blue Hope: Exploring and Caring for Earth's Magnificent Ocean. Washington, D.C: National Geographic, 2014.

Dyfyniad MLA

Earle, Sylvia A. Blue Hope: Exploring and Caring for Earth's Magnificent Ocean. National Geographic, 2014.

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