APA (7th ed.) Citation

Eicher, D. J. (1989). Deep-Sky Observing with Small Telescopes: A guide and reference. Enslow.

Chicago Style (17th ed.) Citation

Eicher, David J. Deep-Sky Observing with Small Telescopes: A Guide and Reference. Hillside, N.J., etc.: Enslow, 1989.

MLA (9th ed.) Citation

Eicher, David J. Deep-Sky Observing with Small Telescopes: A Guide and Reference. Enslow, 1989.