Dyfyniad APA
Fitzpatrick, R. (2012). An introduction to celestial mechanics. Cambridge University Press.
Dyfyniad Arddull Chicago
Fitzpatrick, Richard. An Introduction to Celestial Mechanics. Cambridge ; New York: Cambridge University Press, 2012.
Dyfyniad MLA
Fitzpatrick, Richard. An Introduction to Celestial Mechanics. Cambridge University Press, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.