Dyfyniad APA

Sidgwick, J. B., & Gamble, R. C. (1980). Amateur astronomer's handbook (3rd ed. / prepared by R.C. Gamble.). Dover Publications.

Dyfyniad Arddull Chicago

Sidgwick, J. B., and R. C. Gamble. Amateur Astronomer's Handbook. 3rd ed. / prepared by R.C. Gamble. New York: Dover Publications, 1980.

Dyfyniad MLA

Sidgwick, J. B., and R. C. Gamble. Amateur Astronomer's Handbook. 3rd ed. / prepared by R.C. Gamble. Dover Publications, 1980.

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