APA (7th ed.) Citation

Contopoulos, G. (1966). The theory of orbits in the solar system and in stellar systems. Published for the International Astronomical Union [by the] Academic Press.

Chicago Style (17th ed.) Citation

Contopoulos, George. The Theory of Orbits in the Solar System and in Stellar Systems. London, New York: Published for the International Astronomical Union [by the] Academic Press, 1966.

MLA (9th ed.) Citation

Contopoulos, George. The Theory of Orbits in the Solar System and in Stellar Systems. Published for the International Astronomical Union [by the] Academic Press, 1966.

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