Richard Milner

The Last Human: A Guide to Twenty-Two Species of Extinct Humans

Ian Tattersall, Donald C. Johanson, Meave G. Leakey, 2007 .

Charles Darwin and Associates, Ghostbusters

Richard Milner, 1996 .

The Encyclopedia of Evolution: Humanity's Search for Its Origins

Richard Milner, R. Milner, 1990 .