Weisz, P. B. (1959). The science of biology. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Weisz, Paul B. The Science of Biology. Nueva York: McGraw-Hill, 1959.
Lua MLA (9ú heag.)Weisz, Paul B. The Science of Biology. McGraw-Hill, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.