Braidwood, Robert J.
Prehistoric men
Natural History Museum, 1963
 Buku Teks
Braidwood, Robert J.
Prehistoric men
Chicago Natural History Museum, 1951
 Buku Teks
Kuhn, Herbert
On the track of prehistoric man
Random House, 1955
 Buku Teks
Scheele, William E.
Prehistoric man and the primates
World Publishing, 1957
 Buku Teks
Murray, Raymond W.
Mans unknown ancestors: the story of prehistoric man
Bruce Publishing, 1943
 Buku Teks