Cita APA (7a ed.)

Kepple, G. R., & Sanner, G. W. (2014). The night sky observer's guide (8th printing.). Willmann-Bell.

Cita Chicago Style (17a ed.)

Kepple, George Robert, y Glen W. Sanner. The Night Sky Observer's Guide. 8th printing. Richmond: Willmann-Bell, 2014.

Cita MLA (9a ed.)

Kepple, George Robert, y Glen W. Sanner. The Night Sky Observer's Guide. 8th printing. Willmann-Bell, 2014.