APA (7th ed.) Citation

Gregory, J. (1980). Quadratic form theory and differential equations (1.). Academic Press.

Chicago Style (17th ed.) Citation

Gregory, J. Quadratic Form Theory and Differential Equations. 1. New York: Academic Press, 1980.

MLA (9th ed.) Citation

Gregory, J. Quadratic Form Theory and Differential Equations. 1. Academic Press, 1980.