Cita APA (7a ed.)

Sowers, J. I. (1925). The boy and his vocation. The Manual arts press.

Cita Chicago Style (17a ed.)

Sowers, John Irving. The Boy and His Vocation. Peoria, Ill.: The Manual arts press, 1925.

Cita MLA (8a ed.)

Sowers, John Irving. The Boy and His Vocation. The Manual arts press, 1925.