APA citiranje

Machholz, D. (2013). The observing guide to the Messier marathon: Ahandbook and atlas. Cambridge University.

Trích dẫn kiểu Chicago

Machholz, Don. The Observing Guide to the Messier Marathon: Ahandbook and Atlas. Cambridge University, 2013.

MLA citiranje

Machholz, Don. The Observing Guide to the Messier Marathon: Ahandbook and Atlas. Cambridge University, 2013.

Opozorilo: Ti citati niso vedno 100% točni.