APA (7th ed.) Citation

Roy, A. E. (1988). Orbital motion (3. ed.). Hilger.

Chicago Style (17th ed.) Citation

Roy, Archie E. Orbital Motion. 3. ed. Bristol [u.a.]: Hilger, 1988.

MLA (9th ed.) Citation

Roy, Archie E. Orbital Motion. 3. ed. Hilger, 1988.