Citazione Stile APA (7a Edizione)

Hohfeld, J. M. (1950). An experiment employing two method of teaching Spanish to college freshmen. [s.n.].

Citazione stile Chigago Style (17a edizione)

Hohfeld, John Maurice. An Experiment Employing Two Method of Teaching Spanish to College Freshmen. Philadelphia: [s.n.], 1950.

Citatione MLA (9a ed.)

Hohfeld, John Maurice. An Experiment Employing Two Method of Teaching Spanish to College Freshmen. [s.n.], 1950.