Dyfyniad APA

Spilsbury, L. (2013). Sea otters. Capstone Heinemann Library.

Dyfyniad Arddull Chicago

Spilsbury, Louise. Sea Otters. Chicago, Ill.: Capstone Heinemann Library, 2013.

Dyfyniad MLA

Spilsbury, Louise. Sea Otters. Capstone Heinemann Library, 2013.

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