1.
 |  | Title: Nitrification and Denitrification in the Activated Sludge Process by Michael H. Gerardi ISBN: 0471065080 Publisher: Wiley-Interscience Pub. Date: 28 December, 2001 List Price: $52.50 Amazon.com Price: $52.50 |
2.
 |  | Title: Settleability Problems and Loss of Solids in the Activated Sludge Process by Michael H. Gerardi ISBN: 0471206946 Publisher: Wiley-Interscience Pub. Date: 20 September, 2002 List Price: $52.50 Amazon.com Price: $52.50 |
3.
 |  | Title: The Microbiology of Anaerobic Digesters by Michael H. Gerardi ISBN: 0471206938 Publisher: Wiley-Interscience Pub. Date: 08 August, 2003 List Price: $49.95 Amazon.com Price: $49.95 |
4.
 |  | Title: Wastewater Biology: The Life Processes: A Special Publication (Special Publication (Water Environment Federation).) by Water Environment Federation, Michael H. Gerardi, Robert M. Arthur, Water Environment Federation Task Force on Wastewater Biology: The Lif ISBN: 1881369935 Publisher: Water Environment Federation Pub. Date: January, 1994 List Price: $47.50 Amazon.com Price: $47.50 |
5.
 |  | Title: Nitrification and Denitrification in the Activated Sludge Process by Michael H. Gerardi ISBN: B0002062MI Publisher: John Wiley & Sons, Inc. List Price: $52.50 Amazon.com Price: $52.50 |
6.
 |  | Title: The Design and Implementation of Geographic Information Systems by John E. Harmon, Michael H. Gerardi, Steven J. Anderson ISBN: B00009KTQP Publisher: John Wiley & Sons, Inc. List Price: $80.00 Amazon.com Price: $80.00 |
7.
 |  | Title: The History, Biology, Damage, and Control of the Gypsy Moth, Porthetria Dispar (L.) by Michael H. Gerardi ISBN: 083862023X Publisher: Associated Univ Pr Pub. Date: May, 1979 List Price: $35.00 Amazon.com Price: $35.00 |
8.
 |  | Title: Wastewater Biology: The Microlife (Special Publication (Water Environment Federation).) by Michael H. Gerardi, Water Pollution Control Federation Task Force on Wastewater Biology ISBN: 0943244498 Publisher: Water Environment Federation Pub. Date: May, 1990 List Price: $40.00 Amazon.com Price: $40.00 |