Hughes, D. T. D., & Marshall, P. T. (1970). Human health, biology, and hygiene. Cambridge University press.
Cita Chicago (17th ed.)Hughes, David Treharne Dillon, i P. T. Marshall. Human Health, Biology, and Hygiene. London: Cambridge University press, 1970.
Cita MLA (9th ed.)Hughes, David Treharne Dillon, i P. T. Marshall. Human Health, Biology, and Hygiene. Cambridge University press, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.