APA (7th ed.) Citation

Weingardt, R. (2009). Circles in the sky: The life and times of George Ferris. American Society of Civil Engineers. https://doi.org/10.1061/9780784410103

Chicago Style (17th ed.) Citation

Weingardt, Richard. Circles in the Sky: The Life and Times of George Ferris. Reston, Virginia: American Society of Civil Engineers, 2009. https://doi.org/10.1061/9780784410103.

MLA (9th ed.) Citation

Weingardt, Richard. Circles in the Sky: The Life and Times of George Ferris. American Society of Civil Engineers, 2009. https://doi.org/10.1061/9780784410103.

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