APA (7th ed.) Citation

Machholz, D. (2002). The observing guide to the Messier marathon: A handbook and atlas. Cambridge University Press. https://doi.org/10.1017/CBO9780511536458

Chicago Style (17th ed.) Citation

Machholz, Don. The Observing Guide to the Messier Marathon: A Handbook and Atlas. Cambridge: Cambridge University Press, 2002. https://doi.org/10.1017/CBO9780511536458.

MLA (9th ed.) Citation

Machholz, Don. The Observing Guide to the Messier Marathon: A Handbook and Atlas. Cambridge University Press, 2002. https://doi.org/10.1017/CBO9780511536458.