MLA

Doyal, Lesley, and Imogen Pennell. The Political Economy of Health. 7 ed. London: Pluto, 1979.

APA

Doyal, L., & Pennell, I. (1979). The political economy of health. 7 ed. London: Pluto.

Chicago

Doyal, Lesley, and Imogen Pennell. The Political Economy of Health. 7 ed. London: Pluto, 1979.