00313nam a2200109Ia 450000500170000000800410001708200150005810000190007324500630009226000400015530000080019520260224040833.0260224s9999||||xx |||||||||||||| ||und||  a333.72 BEN  aBennett, C.F.  0aConservation and management of natural resources in the US  aNew York: John Wiley & Sons. c1983  a436