APA (7th ed.) Citation

Ross, E. A. (1936). Seventy years of it. D. Appleton-Century company, incorporated.

Chicago Style (17th ed.) Citation

Ross, Edward Alsworth. Seventy Years of It. New York, London: D. Appleton-Century company, incorporated, 1936.

MLA (9th ed.) Citation

Ross, Edward Alsworth. Seventy Years of It. D. Appleton-Century company, incorporated, 1936.