APA (7th ed.) Citation

Galilei, G. (1989). Sidereus nuncius or The sidereal messenger. Univ. of Chicago Pr.

Chicago Style (17th ed.) Citation

Galilei, Galileo. Sidereus Nuncius or The Sidereal Messenger. Chicago u.a: Univ. of Chicago Pr, 1989.

MLA (9th ed.) Citation

Galilei, Galileo. Sidereus Nuncius or The Sidereal Messenger. Univ. of Chicago Pr, 1989.

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