APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Kwok, S. Cosmic Butterflies: The Colorful Mysteries of Planetary Nebulae. Cambridge ; New York: Cambridge University Press, 2001.

MLA (9th ed.) Citation

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

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