Hughes, D. T. D., & Marshall, P. T. (1970). Human health, biology, and hygiene. Cambridge University press.
Lua i Stíl Chicago (17ú heag.)Hughes, David Treharne Dillon, agus P. T. Marshall. Human Health, Biology, and Hygiene. London: Cambridge University press, 1970.
Lua MLA (9ú heag.)Hughes, David Treharne Dillon, agus P. T. Marshall. Human Health, Biology, and Hygiene. Cambridge University press, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.