Underwood, J. (1975). Biocultural interactions and human variation. W.M.C Brown Company.
Lua i Stíl Chicago (17ú heag.)Underwood, Jane. Biocultural Interactions and Human Variation. NULL: W.M.C Brown Company, 1975.
Lua MLA (9ú heag.)Underwood, Jane. Biocultural Interactions and Human Variation. W.M.C Brown Company, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.