333.72
S648C
           Smith, Guy-Harold (Ed.)
               Conservation of natural resources \ Guy-Harold Smith - 4th - New York : John Wiley and Sons, 1971.
               xii, 685p.
                ISBN: 0-471-80192-5

77477
                Subjects: Conservation of natural resources-United States; Soil conservation-United States; Wild life conservation-United Sates.