Cita APA (7a ed.)

Hill, H. C. (1928). Vocational civics. Ginn and Company.

Cita Chicago Style (17a ed.)

Hill, Howard C. Vocational Civics. Boston ; London: Ginn and Company, 1928.

Cita MLA (8a ed.)

Hill, Howard C. Vocational Civics. Ginn and Company, 1928.