APA (7th ed.) Citation

Kwok,Sun. (2001). Cosmic Butterflies: The Colorful Mysteries Of Planetary Nebulae. Cambridge University Press.

Chicago Style (17th ed.) Citation

Kwok,Sun. Cosmic Butterflies: The Colorful Mysteries Of Planetary Nebulae. United Kingdom: Cambridge University Press, 2001.

MLA (9th ed.) Citation

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

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