Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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