Grand Canyon, A Century of Change: Rephotography of the 1889-1890 Stanton Expedition Autor Robert H. Webb mai 1996 Paperback Preț: 216.75 lei 3-5 săpt.
The Ribbon of Green: Change in Riparian Vegetation in the Southwestern United States Autor Robert H. Webb et al. 10 mai 2007 Hardback Preț: 538.69 lei 772.92 lei Indisponibil temporar -30%
The Changing Mile Revisited: An Ecological Study of Vegetation Change with Time in the Lower Mile of an Arid and Semiarid Region Autor Raymond M. Turner et al. mai 2003 Hardback Preț: 534.59 lei 770.33 lei Indisponibil temporar -31%
Floods, Droughts, and Climate Change Autor Michael Collier et al. noi 2002 Paperback Preț: 138.62 lei 186.11 lei Indisponibil temporar -26%
Requiem for the Santa Cruz: An Environmental History of an Arizona River Autor Robert H. Webb et al. 12 iun 2014 Hardback Preț: 471.94 lei 582.64 lei Indisponibil temporar -19%