APA (7th ed.) Citation

Woolard, E. W., & Clemence, G. M. (1966). Spherical astronomy. Academic Press.

Chicago Style (17th ed.) Citation

Woolard, Edgar W., and Gerald M. Clemence. Spherical Astronomy. New York,: Academic Press, 1966.

MLA (9th ed.) Citation

Woolard, Edgar W., and Gerald M. Clemence. Spherical Astronomy. Academic Press, 1966.