00373nam a2200133 a 450000500170000010000240001724500500004126000280009130000100011996400230012999700180015299900170017095200520018720251203090713.0  aHart,Robert A de J.  aEcosociety historical study of ecological man  aNatraj Publishersc1984  a196p.  bENGLISHcdefg_  a18268 LIBSC C  c17006d17006  00104070aPUbPUd1998-09-25l0o p18268yBK