Global Perspectives on River Conservation : Science, Policy and Practice Davies, B. R. Boon, P. J. Petts, Geoffrey E. 9780471960621 Innbundet 27.07.2000 Engelsk I salg
Changing River Channels Gurnell, A. M. Petts, Geoffrey E. 9780471957270 Innbundet 11.09.1995 Engelsk Midlertidig utsolgt
