Faulkner, H. U., & Spriggs, D. L. (1960). American economic history (8th ed.). Harper.

Faulkner, Harold Underwood, and Darrell Leonard Spriggs. American Economic History. 8th ed. New York,: Harper, 1960.

Faulkner, Harold Underwood, and Darrell Leonard Spriggs. American Economic History. 8th ed. Harper, 1960.