Sherrod, C. C., & Koed, T. L. (1981). A complete manual of amateur astronomy: Tools and techniques for astronomical observations. New York, New York: Prentice Hall Press.
Citación estilo ChicagoSherrod, Clay C., y Thomas L. Koed. A Complete Manual of Amateur Astronomy: Tools and Techniques for Astronomical Observations. New York, New York: Prentice Hall Press, 1981.
Cita MLASherrod, Clay C., y Thomas L. Koed. A Complete Manual of Amateur Astronomy: Tools and Techniques for Astronomical Observations. New York, New York: Prentice Hall Press, 1981.
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