pt. 1. The effect and probable cause (EPC) method / authors, D. De Zwart ... [et al.]
pt. 2. The GIS-based weights of evidence/weighted logistic regression method / authors, Katherine E. Kapo, G. Allen Burton Jr., Emma Pemberton.
Understanding ecological impacts in rivers in England and Wales and identifying their possible causes. ISBN 9781844329472. Published by Environment Agency in 2008. Publication and catalogue information, links to buy online and reader comments.