Serviss, G. P. (1916). Astronomy with an opera-glass: A popular introduction to the study of the starry heavens with the simplest of optical instruments, with maps and directions to facilitate the recognition of the constellations and the principal stars visible to the naked eye. D. Appleton and company.
Chicago Style (17th ed.) CitationServiss, Garrett Putman. Astronomy with an Opera-glass: A Popular Introduction to the Study of the Starry Heavens with the Simplest of Optical Instruments, with Maps and Directions to Facilitate the Recognition of the Constellations and the Principal Stars Visible to the Naked Eye. New York, London: D. Appleton and company, 1916.
MLA (9th ed.) CitationServiss, Garrett Putman. Astronomy with an Opera-glass: A Popular Introduction to the Study of the Starry Heavens with the Simplest of Optical Instruments, with Maps and Directions to Facilitate the Recognition of the Constellations and the Principal Stars Visible to the Naked Eye. D. Appleton and company, 1916.