David M. Harper
Ecohydrology
Rutland water--decade of change
The Ecological Basis for River Management
The sustainable management of tropical catchments
Assessing the conservation value of rivers
Conservation of primates and their habitats
Ecological Bases for Lake and Reservoir Management
Eutrophication of freshwaters
Lake Naivasha, Kenya
Starter Cookbook
The Recovery of the Willow Brook, Northamptonshire, from Heavy Metal Pollution