Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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