1.
 |  | Title: Imaging and Information Storage Technology by Wolfgang Gerhartz ISBN: 089573978X Publisher: John Wiley & Sons Inc Pub. Date: 01 October, 1991 List Price: $115.00 Amazon.com Price: $115.00 |
2.
 |  | Title: Enzymes in Industry: Production and Applications by Wolfgang Gerhartz ISBN: 3527279849 Publisher: John Wiley & Sons Inc Pub. Date: May, 1990 List Price: $168.00 Amazon.com Price: $168.00 |
3.
 |  | Title: Ullmann's Encyclopedia of Industrial Chemistry, (Ullmann's Encyclopedia of Industrial Chemistry) by Wolfgang Gerhartz, Barbara Elvers, Michael Ravenscroft, James F. Rounsaville, Gail Schulz, Hertha Buchholz ISBN: 3527201432 Publisher: Wiley-VCH Pub. Date: 31 December, 1989
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4.
 |  | Title: Ullmann's Encyclopedia of Industrial Chemistry: Unit Operations Ii, Vol B3 (Ullmann's Encyclopedia of Industrial Chemistry) by Wolfgang Gerhartz, Barbara Elvers, Fritz Ullmann ISBN: 0895735385 Publisher: John Wiley & Sons Inc Pub. Date: 01 May, 1989 List Price: $265.00 Amazon.com Price: $265.00 |
5.
 |  | Title: Ullmann's Encyclopedia of Industrial Chemistry: Vol A-11 by Wolfgang Gerhartz, Y. Stephen Yamamoto, Barbara Elvers, J Rounsaville ISBN: 0895731614 Publisher: John Wiley & Sons Inc Pub. Date: 01 December, 1988 List Price: $180.00 Amazon.com Price: $180.00 |