APA (7th ed.) Citation

Killough, H. B., & Killough, L. (1929). Raw materials of industrialism. Thomas Y. Crowell company.

Chicago Style (17th ed.) Citation

Killough, Hugh Baxter, and Lucy Killough. Raw Materials of Industrialism. New York: Thomas Y. Crowell company, 1929.

MLA (9th ed.) Citation

Killough, Hugh Baxter, and Lucy Killough. Raw Materials of Industrialism. Thomas Y. Crowell company, 1929.