APA (7th ed.) Citation

Huygens, C. (1968). The celestial worlds discover'd (1st English ed. new impression.). Cass.

Chicago Style (17th ed.) Citation

Huygens, Christiaan. The Celestial Worlds Discover'd. 1st English ed. new impression. London: Cass, 1968.

MLA (8th ed.) Citation

Huygens, Christiaan. The Celestial Worlds Discover'd. 1st English ed. new impression. Cass, 1968.

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