APA (7th ed.) Citation

Carstairs, C. (2011). The Hubble-Shue. Project Gutenberg.

Chicago Style (17th ed.) Citation

Carstairs, Christian. The Hubble-Shue. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Carstairs, Christian. The Hubble-Shue. Project Gutenberg, 2011.

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