APA (7th ed.) Citation

King, W. L. M., English, J., & Stubbs, J. O. (1978). Mackenzie King: Widening the debate. Macmillan of Canada.

Chicago Style (17th ed.) Citation

King, William Lyon Mackenzie, John English, and John O. Stubbs. Mackenzie King: Widening the Debate. Toronto: Macmillan of Canada, 1978.

MLA (9th ed.) Citation

King, William Lyon Mackenzie, et al. Mackenzie King: Widening the Debate. Macmillan of Canada, 1978.