Lua APA (7ú heag.)
Machholz, D. (2002). The observing guide to the Messier marathon: A handbook and atlas. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)
Machholz, Don. The Observing Guide to the Messier Marathon: A Handbook and Atlas. Cambridge, UK ; New York: Cambridge University Press, 2002.
Lua MLA (9ú heag.)
Machholz, Don. The Observing Guide to the Messier Marathon: A Handbook and Atlas. Cambridge University Press, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.