Pedro Fierro, Evan K. Nyer, "The Water Encyclopedia, Third Edition: Hydrologic Data and Internet Resources" English | 2007 | ISBN: 1566706459 | 1880 pages | PDF | 34 MB
Jay H. Lehr, Jack Keeley, "Water Encyclopedia, Surface and Agricultural Water, Volume 3" English | 2005 | ISBN: 0471736856 | PDF | pages: 794 | 50.0 mb
Water Encyclopedia, Oceanography; Meteorology; Physics and Chemistry; Water Law; and Water History, Art, and Culture (Volume 4) by Jay H. Lehr English | 2005 | ISBN: 0471736848 | 832 Pages | PDF | 41.25 MB
The Water Encyclopedia, Third Edition: Hydrologic Data and Internet Resources By Pedro Fierro Jr., Evan K. Nyer 2007 | 1880 Pages | ISBN: 1566706459 | PDF | 34 MB
Water Encyclopedia, Domestic, Municipal, and Industrial Water Supply and Waste Disposal (Volume 1) By Jay H. Lehr, Jack Keeley 2005 | 952 Pages | ISBN: 0471736872 | PDF | 81 MB