Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago

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

Tohutoro MLA

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