Ma bibliothèque

LEADER 00000nam  2200000 a 4500 
001    LC89601685 
008    940225s1989    dcuabk   b   o000   eng   
010    89601685 
040    DGPO/DLC|cDLC|dDLC 
043    n-us---|an-us-ia 
050  4 KF27|b.A33277 1988d 
082 04 363.73/84|220 
110 1  United States.|bCongress.|bHouse.|bCommittee on 
       Agriculture.|bSubcommittee on Department Operations, 
       Research, and Foreign Agriculture. 
245 10 Review of ground water quality concerns :|bhearings before
       the Subcommittee on Department Operations, Research, and 
       Foreign Agriculture of the Committee on Agriculture, House
       of Representatives, One Hundredth Congress, first and 
       second sessions, October 12, 1987, Humboldt, IA; October 
       27 and December 9, 1987; March 29 and May 24, 1988. 
260    Washington :|bU.S. G.P.O :|bFor sale by the Supt. of Docs.,
       Congressional Sales Office, U.S. G.P.O,|c1989. 
300    v, 615 p :|bill., forms, maps ;|c24 cm. 
500    Distributed to some depository libraries in microfiche. 
500    Shipping list no.: 89-143-P. 
500    "Serial no. 100-95.". 
500    Item 1010-A, 1010-B (microfiche). 
504    Includes bibliographies. 
650  0 Groundwater|xPollution|zIowa. 
650  0 Agricultural chemicals|xEnvironmental aspects|zIowa. 
650  0 Water quality management|zIowa. 
650  0 Groundwater|xPollution|zUnited States. 
650  0 Agricultural chemicals|xEnvironmental aspects|zUnited 
       States. 
650  0 Water quality management|zUnited States.