APA (7th ed.) Citation

Parker, U. S. (1920). Elements of economics for high schools (Rev. ed.). Irwin printing co..

Chicago Style (17th ed.) Citation

Parker, Ulysses Simpson. Elements of Economics for High Schools. Rev. ed. [Quincy, Ill.: Irwin printing co., 1920.

MLA (8th ed.) Citation

Parker, Ulysses Simpson. Elements of Economics for High Schools. Rev. ed. Irwin printing co., 1920.