Cita APA

Gray, J. A. M., & Gray, J. A. M. (1979). Man against disease: Preventive medicine. Oxford: Oxford University Press.

Citación estilo Chicago

Gray, John Armstrong Muir, y John Armstrong Muir Gray. Man against Disease: Preventive Medicine. Oxford: Oxford University Press, 1979.

Cita MLA

Gray, John Armstrong Muir, y John Armstrong Muir Gray. Man against Disease: Preventive Medicine. Oxford: Oxford University Press, 1979.