APA (7th ed.) Citation

Allen, C. F. (1919). Business law for engineers (2nd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Allen, Calvin Frank. Business Law for Engineers. 2nd ed. New York: McGraw-Hill, 1919.

MLA (9th ed.) Citation

Allen, Calvin Frank. Business Law for Engineers. 2nd ed. McGraw-Hill, 1919.