Cita APA (7a ed.)

Curtis, J., Tepperman, L., Curtis, J. E., & Curtis, J. E. (1988). Understanding Canadian society. McGraw-Hill Ryerson.

Cita Chicago Style (17a ed.)

Curtis, James, Lorne Tepperman, James E. Curtis, y James E. Curtis. Understanding Canadian Society. Toronto [u.a.]: McGraw-Hill Ryerson, 1988.

Cita MLA (8a ed.)

Curtis, James, et al. Understanding Canadian Society. McGraw-Hill Ryerson, 1988.