1. Animal behavior: An evolutionary approach;Alcock,2005
2. African genesis: A personal investigation into the animal origins and nature of man;Ardrey,1961
3. The territorial imperative: A personal inquiry into the animal origins of property and nations;Ardrey,1966
4. The social contract: A personal inquiry into the evolutionary sources of order and disorder;Ardrey,1970
5. The hunting hypothesis: A personal conclusion concerning the evolutionary nature of man;Ardrey,1976