APA (7th ed.) Citation

Roy, A. E. (1982). Orbital motion (2nd ed.). A. Hilger.

Chicago Style (17th ed.) Citation

Roy, A. E. Orbital Motion. 2nd ed. Bristol: A. Hilger, 1982.

MLA (9th ed.) Citation

Roy, A. E. Orbital Motion. 2nd ed. A. Hilger, 1982.