APA Citation

Ryan, B. (2005). Stephen Hawking: Physicist and educator. New York: Ferguson.

Chicago Style Citation

Ryan, Bernard. Stephen Hawking: Physicist and Educator. New York: Ferguson, 2005.

MLA Citation

Ryan, Bernard. Stephen Hawking: Physicist and Educator. New York: Ferguson, 2005.

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