Cita APA (7th ed.)

Canby, H. S. (1968). American estimates. Kennikat Press.

Cita Chicago (17th ed.)

Canby, Henry Seidel. American Estimates. Port Washington, N.Y.: Kennikat Press, 1968.

Cita MLA (8th ed.)

Canby, Henry Seidel. American Estimates. Kennikat Press, 1968.