APA (7th ed.) Citation

Porter, J. G. (1952). Comets and meteor streams. Wiley.

Chicago Style (17th ed.) Citation

Porter, John Guy. Comets and Meteor Streams. New York: Wiley, 1952.

MLA (9th ed.) Citation

Porter, John Guy. Comets and Meteor Streams. Wiley, 1952.

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