APA (7th ed.) Citation

Cohen, I. B. (1980). Aspects of astronomy in America in the nineteenth century. Arno Press.

Chicago Style (17th ed.) Citation

Cohen, I. Bernard. Aspects of Astronomy in America in the Nineteenth Century. New York: Arno Press, 1980.

MLA (9th ed.) Citation

Cohen, I. Bernard. Aspects of Astronomy in America in the Nineteenth Century. Arno Press, 1980.