APA (7th ed.) Citation

ScienceDirect (Online service) & Kopal. (1963). Advances in astronomy and astrophysics. Academic Press.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service) and Kopal. Advances in Astronomy and Astrophysics. New York: Academic Press, 1963.

MLA (9th ed.) Citation

ScienceDirect (Online service) and Kopal. Advances in Astronomy and Astrophysics. Academic Press, 1963.

Warning: These citations may not always be 100% accurate.