Citazione Stile APA (7a Edizione)

Gregory, J. (1980). Quadratic form theory and differential equations. Academic Press.

Citazione stile Chigago Style (17a edizione)

Gregory, John. Quadratic Form Theory and Differential Equations. Nueva York: Academic Press, 1980.

Citatione MLA (9a ed.)

Gregory, John. Quadratic Form Theory and Differential Equations. Academic Press, 1980.