Free Download … By Karl Maramorosch, Frederick A. Murphy and Aaron J. Shatkin (Eds.) Publisher Academic press 1989 ISBN 978-0-12-039836-2,0-12-039836-2..

Free Download Applied Groundwater Modeling… By Mary P Anderson; William W Woessner Publisher Academic Press 1991 ISBN 978-0-12-059485-6,0-12-059485-4..