APA (7th ed.) Citation

Lipsey, R. G., Langley, P. C., & Mahoney, D. M. (1981). Positive economics for Australian students. Weidenfeld and Nicolson.

Chicago Style (17th ed.) Citation

Lipsey, Richard G., Paul C. Langley, and Dennis M. Mahoney. Positive Economics for Australian Students. London: Weidenfeld and Nicolson, 1981.

MLA (9th ed.) Citation

Lipsey, Richard G., et al. Positive Economics for Australian Students. Weidenfeld and Nicolson, 1981.