Dyfyniad APA

SpringerLink (Online service) & Gainer, M. K. (2007). Real astronomy with smal telescopes: Step-by-step activities for discovery. Springer-Verlag London Limited.

Dyfyniad Arddull Chicago

SpringerLink (Online service) and Michael K. Gainer. Real Astronomy with Smal Telescopes: Step-by-step Activities for Discovery. London: Springer-Verlag London Limited, 2007.

Dyfyniad MLA

SpringerLink (Online service) and Michael K. Gainer. Real Astronomy with Smal Telescopes: Step-by-step Activities for Discovery. Springer-Verlag London Limited, 2007.

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