Cita APA

Pringle, R. W. 1., & Pringle, R. W. 1. (1931). The psychology of high-school discipline. Boston: D. C. Heath and Company.

Citación estilo Chicago

Pringle, Ralph W. 1865-, y Ralph W. 1865- Pringle. The Psychology of High-school Discipline. Boston: D. C. Heath and Company, 1931.

Cita MLA

Pringle, Ralph W. 1865-, y Ralph W. 1865- Pringle. The Psychology of High-school Discipline. Boston: D. C. Heath and Company, 1931.