APA Edition Citation

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

Chicago Edition Citation

Bray, R J., and R E. Loughhead. Sunspots. N Y, Dover Publications, 1979.

MLA Edition Citation

Bray, R J., and R E. Loughhead. Sunspots. 1979.

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