Dyfyniad APA

Dyson, M. (2010). Space and astronomy: Decade by decade. Viva books.

Dyfyniad Arddull Chicago

Dyson, Marianne. Space and Astronomy: Decade by Decade. New Delhi: Viva books, 2010.

Dyfyniad MLA

Dyson, Marianne. Space and Astronomy: Decade by Decade. Viva books, 2010.

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