Cita APA (7a ed.)

Van Loon, R. J., & Whittington, M. S. (1971). The canada political system: Environment, structure & process. McGraw-Hill.

Cita Chicago Style (17a ed.)

Van Loon, Richard J., y Michael S. Whittington. The Canada Political System: Environment, Structure & Process. Toronto: McGraw-Hill, 1971.

Cita MLA (8a ed.)

Van Loon, Richard J., y Michael S. Whittington. The Canada Political System: Environment, Structure & Process. McGraw-Hill, 1971.