United States Naval Observatory, Eichelberger, W. S., Morgan, H. R., & Little, F. (1918). Observations made with the nine-inch transit circle, 1908-1911. Govt. Print. Off.
Chicago Style (17th ed.) CitationUnited States Naval Observatory, W. S. Eichelberger, H. R. Morgan, and F.B Little. Observations Made with the Nine-inch Transit Circle, 1908-1911. Washington: Govt. Print. Off, 1918.
MLA (9th ed.) CitationUnited States Naval Observatory, et al. Observations Made with the Nine-inch Transit Circle, 1908-1911. Govt. Print. Off, 1918.
Warning: These citations may not always be 100% accurate.