00816cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035001800092040004700110042001200157050002400169082001100193100005200204245006000256250001100316260004400327300003700371504005900408650003800467651004000505999001700545agr49000401 DLC20260227111011.0711117s1949    nyuab    b    000 0 eng c  aagr49000401   a(OCoLC)172616  aU.S. Dept. of Agr. Libr.cODaWUdNcRSdDLC  apremarc00aHC106.3b.G885 1949  a333.721 aGustafson, A. F.q(Axel Ferdinand),d1880-1942.10aConservation in the United Statesc[by] A.F. Gustafson.  a3d ed.  aIthaca, N.Y.bComstock Pub. Co.,c1949.  aix, 534 p.billus., mapsc24 cm.  a"Suggestions for supplementary reading": p. [513]-520. 0aNatural resourceszUnited States. 0aUnited StatesxEconomic conditions.  c11003d11003