Dyfyniad APA

Rothery, D. A. (2010). Planets: A Very Short Introduction (1st.). Oxford.

Dyfyniad Arddull Chicago

Rothery, David A. Planets: A Very Short Introduction. 1st. Oxford, 2010.

Dyfyniad MLA

Rothery, David A. Planets: A Very Short Introduction. 1st. Oxford, 2010.

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