APA (7th ed.) Citation

Kwok, S. (2001). Cosmic butterflies: The colorful mysteries of planetary nebulae (1. publ.). Cambridge University Press.

Chicago Style (17th ed.) Citation

Kwok, Sun. Cosmic Butterflies: The Colorful Mysteries of Planetary Nebulae. 1. publ. Cambridge [u.a.]: Cambridge University Press, 2001.

MLA (9th ed.) Citation

Kwok, Sun. Cosmic Butterflies: The Colorful Mysteries of Planetary Nebulae. 1. publ. Cambridge University Press, 2001.