APA (7th ed.) Citation

Swamy, K. S. K. (1997). Physics of comets (2nd ed.). World Science.

Chicago Style (17th ed.) Citation

Swamy, K. S. Krishna. Physics of Comets. 2nd ed. Singapore: World Science, 1997.

MLA (9th ed.) Citation

Swamy, K. S. Krishna. Physics of Comets. 2nd ed. World Science, 1997.