Terdaftar], [. (1996). Introductory Astronomy. Neil F. Comins.
Chicago Style CitationTerdaftar], [Tidak. Introductory Astronomy. Neil F. Comins, 1996.
MLA CitationTerdaftar], [Tidak. Introductory Astronomy. Neil F. Comins, 1996.
Warning: These citations may not always be 100% accurate.