APA Citation

Beckmann, P. (1990). A history of PI. New York: Barnes & Noble Books.

Chicago Style Citation

Beckmann, Petr. A History of PI. New York: Barnes & Noble Books, 1990.

MLA Citation

Beckmann, Petr. A History of PI. New York: Barnes & Noble Books, 1990.

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