21.
 |  | Title: Water Quality International '96 Part 7: Agro-Industries Technologies and Waste Stabilization Ponds; Wastewater Reclamation and Reuse by D. Ballay, T. Asano, R. Bhamidimarri, K.K. Chin, W.O.K. Grabow, E.R. Hall, S. Ohgaki, D. Orhon, A. Milburn, C.D. Purdon ISBN: 0080430910 Publisher: Pergamon Press Pub. Date: 01 January, 1997 List Price: $136.00 Amazon.com Price: $136.00 |
22.
 |  | Title: Water Quality International '96 Part 8: River Basin Management; Management and Institutional Affairs; Environmental Engineering Education by D. Ballay, T. Asano, R. Bhamidimarri, K.K. Chin, W.O.K. Grabow, E.R. Hall, S. Ohgaki, D. Orhon, A. Milburn, C.D. Purdon ISBN: 0080430929 Publisher: Pergamon Press Pub. Date: 01 January, 1997
|
23.
 |  | Title: Water Quality International '96 Part 5: Innovative Treatment Technologies; Membrane Technology by D. Ballay, T. Asano, R. Bhamidimarri, K.K. Chin, W.O.K. Grabow, E.R. Hall, S. Ohgaki, D. Orhon, A. Milburn, C.D. Purdon ISBN: 0080430880 Publisher: Pergamon Press Pub. Date: 01 April, 1997 List Price: $136.00 Amazon.com Price: $136.00 |
24.
 |  | Title: Screening of Hydrological Data: Tests for Stationarity and Relative Consistency (ILRI Publication) by E.R. Dahmen, M.J. Hall ISBN: 9070754231 Publisher: Pudoc Scientific Publishers Pub. Date: 31 December, 1991
|
25.
 |  | Title: Water Quality International '98 Part 7: Wastewater: Biological Processes by J.L. Grabow, M. Dohmann, C. Haas, E.R. Hall, A. Lesouef, D. Orhon, W. O. K. Grabow ISBN: 0080433952 Publisher: Pergamon Press Pub. Date: 01 December, 1998 List Price: $318.00 Amazon.com Price: $318.00 |
26.
 |  | Title: Water Quality International '98 Part 8: Wastewater: Sewers by W.O.K. Grabow, M. Dohmann, C. Haas, E.R. Hall, A. Lesouef, D. Orhon ISBN: 0080433960 Publisher: Pergamon Press Pub. Date: 01 December, 1998 List Price: $159.00 Amazon.com Price: $159.00 |
27.
 |  | Title: Some Diseases of Emerging Importance to Community Trade (Agriculture) by J.R. Walton, E.G. White, S.A. Hall ISBN: 9282536963 Publisher: European Communities / Union (EUR-OP/OOPEC/OPOCE) Pub. Date: 31 December, 1983
|
28.
 |  | Title: Post-Roman Coins from York Excavations, 1971-81 by E.J.E. Pirie, M.M. Archibald, R.A. Hall ISBN: 0900312971 Publisher: Prometheus Books Pub. Date: August, 1986 List Price: $19.95 Amazon.com Price: $19.95 |
29.
 |  | Title: Exploring Os/2 Version 2.1 by Henry D. Crockett, Gillian R. Hall, Mark E. Wheeler ISBN: 0877090548 Publisher: Boyd & Fraser Pub Co Pub. Date: January, 1994 List Price: $23.35 Amazon.com Price: $23.35 |
30.
 |  | Title: Exploring Os/2 Version 2.0 by Henry D. Crockett, Gillian R. Hall, Mark E. Wheeler ISBN: 0877090564 Publisher: Boyd & Fraser Pub Co Pub. Date: February, 1993 List Price: $23.35 Amazon.com Price: $23.35 |