Claiborne, Robert, God or beast; evolution and human nature / [print] Robert Clairborne. - [first edition. - New York, Norton (c)1974. - xiii, 260 pages illustrations 21 cm. LCCN: 73020454 Subjects--Topical Terms: Human behavior.Human evolution.Aggressiveness. LC Class. No.: GN273.C585.G636 1974 GN273