Cita APA (7a ed.)

Heyer, P. (2003). Harold Innis. Rowman & Littlefield.

Cita Chicago Style (17a ed.)

Heyer, Paul. Harold Innis. Lanham, Md.: Rowman & Littlefield, 2003.

Cita MLA (9a ed.)

Heyer, Paul. Harold Innis. Rowman & Littlefield, 2003.