1.
|
Denver, Colo. : American Water Works Association, c2010.
|
2.
|
Hoboken, N.J. : Wiley, c2009.
|
3.
|
Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey : [Information Services distributor], 2002.
I 19.76: 02-150 |
|
4.
|
Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 1999.
I 19.76: 99-094 |
|
5.
|
Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 1999.
I 19.76: 99-464 |
|
6.
|
Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : Information Services [distributor], 1999.
I 19.76: |
|
7.
|
Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey : Open-File Reports Section/ESIC [distributor], 1995.
I 19.76: 95-141 |
|
8.
|
Washington : U.S. G.P.O. : For sale by the U.S. G.P.O., Supt. of Docs., Congressional Sales Office, 1995.
Y 4.C 73/8: 104-39 |
|