APA (7th ed.) Citation

Roger, J., & McWilliams, P. (1986). You can't afford the Luxury of a negative. Thorsons.

Chicago Style (17th ed.) Citation

Roger, John, and Peter McWilliams. You Can't Afford the Luxury of a Negative. London: Thorsons, 1986.

MLA (9th ed.) Citation

Roger, John, and Peter McWilliams. You Can't Afford the Luxury of a Negative. Thorsons, 1986.