APA (7th ed.) Citation

Blount, A., & Northup, C. S. (1931). Grammar and usage. Prentice-Hall.

Chicago Style (17th ed.) Citation

Blount, Alma, and Clark Sutherland Northup. Grammar and Usage. New York: Prentice-Hall, 1931.

MLA (9th ed.) Citation

Blount, Alma, and Clark Sutherland Northup. Grammar and Usage. Prentice-Hall, 1931.