Struve, O. v., Lynds, B. T., & Pillans, H. (1959). Elementary astronomy. Oxford Univ. Press.
Chicago Style (17th ed.) CitationStruve, Otto von, Beverly T. Lynds, and Helen Pillans. Elementary Astronomy. New York [u.a.]: Oxford Univ. Press, 1959.
MLA (9th ed.) CitationStruve, Otto von, et al. Elementary Astronomy. Oxford Univ. Press, 1959.
Warning: These citations may not always be 100% accurate.