Day, M. H. (1984). The fossil history of man (3rd ed., rev.). Scientific Publications Division, Carolina Biological Supply Co..
Lua i Stíl Chicago (17ú heag.)Day, Michael H. The Fossil History of Man. 3rd ed., rev. Burlington, N.C.: Scientific Publications Division, Carolina Biological Supply Co., 1984.
Lua MLA (9ú heag.)Day, Michael H. The Fossil History of Man. 3rd ed., rev. Scientific Publications Division, Carolina Biological Supply Co., 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.