Giclas, H. L., Burnham, R., & Thomas, N. G. (1971). Lowell proper motion survey, Northern Hemisphere: The G numbered stars: 8991 stars fainter than magnitude 8 with motions>O.26/year. Lowell Observatory.
Chicago Style (17th ed.) CitationGiclas, H. L., Robert Burnham, and N. G. Thomas. Lowell Proper Motion Survey, Northern Hemisphere: The G Numbered Stars: 8991 Stars Fainter than Magnitude 8 with Motions>O.26/year. Flagstaff, Ariz.: Lowell Observatory, 1971.
MLA (9th ed.) CitationGiclas, H. L., et al. Lowell Proper Motion Survey, Northern Hemisphere: The G Numbered Stars: 8991 Stars Fainter than Magnitude 8 with Motions>O.26/year. Lowell Observatory, 1971.
Warning: These citations may not always be 100% accurate.