APA (7th ed.) Citation

Arthur, J. (2014). Time and Its Measurement. Project Gutenberg.

Chicago Style (17th ed.) Citation

Arthur, James. Time and Its Measurement. Project Gutenberg, 2014.

MLA (9th ed.) Citation

Arthur, James. Time and Its Measurement. Project Gutenberg, 2014.

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