APA (7th ed.) Citation

Bray, R. J., & Loughhead, R. E. (1979). Sunspots (1. publ.). Dover.

Chicago Style (17th ed.) Citation

Bray, Robert J., and Ralph E. Loughhead. Sunspots. 1. publ. New York: Dover, 1979.

MLA (9th ed.) Citation

Bray, Robert J., and Ralph E. Loughhead. Sunspots. 1. publ. Dover, 1979.