Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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