APA (7th ed.) Citation

Helden, A. v. (1984). Galileo and the telescope.

Chicago Style (17th ed.) Citation

Helden, Albert van. Galileo and the Telescope. 1984.

MLA (9th ed.) Citation

Helden, Albert van. Galileo and the Telescope. 1984.

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