APA (7th ed.) Citation

Widom, H. (1969). Lectures on integral equations. Van Nostrand Reinhold Co.

Chicago Style (17th ed.) Citation

Widom, Harold. Lectures on Integral Equations. New York: Van Nostrand Reinhold Co, 1969.

MLA (9th ed.) Citation

Widom, Harold. Lectures on Integral Equations. Van Nostrand Reinhold Co, 1969.