Citazione Stile APA (7a Edizione)

(1969). Lectures in differential equations. Van Nostrand Reinhold Co.

Citazione stile Chigago Style (17a edizione)

Lectures in Differential Equations. New York: Van Nostrand Reinhold Co, 1969.

Citatione MLA (9a ed.)

Lectures in Differential Equations. Van Nostrand Reinhold Co, 1969.