21.
 |  | Title: Compendium of Safety Data Sheets for Research and Industrial Chemicals by Lawrence H. Keith, Douglas B. Walters ISBN: 3527267034 Publisher: Wiley-VCH Pub. Date: 31 December, 1987
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22.
 |  | Title: Compendium of Safety Data Sheets for Research and Industrial Chemicals: Flavor and Fragrance Substances (Compendium of Safety Data Sheets for Research) by Lawrence H. Keith, Douglas B. Walters, Thomas C. Zebovitz ISBN: 0895737647 Publisher: John Wiley & Sons Inc Pub. Date: 01 October, 1989 List Price: $95.00 Amazon.com Price: $95.00 |
23.
 |  | Title: Game Plan: Governance With Foresight (Studies in governance) by John B. Olsen, Douglas C. Eadie, Susan Walter ISBN: 0934842205 Publisher: Natl Governors Assn Pub. Date: 01 June, 1982 List Price: $16.95 Amazon.com Price: $16.95 |
24.
 |  | Title: Leading U.S. Supreme Court State Tax Cases: Official Syllabi, Notes, and Indices by Walter Nagel, Timothy B. Dyk, Gregory A. Castanias, Douglas A. Richards ISBN: 1558713123 Publisher: Bna Books Pub. Date: 01 November, 1995 List Price: $95.00 Amazon.com Price: $95.00 |
25.
 |  | Title: Laboratory Health and Safety Dictionary by W. Carl Gottschall, Douglas B. Walters ISBN: 0471283177 Publisher: Wiley-Interscience Pub. Date: 09 March, 2001 List Price: $62.95 Amazon.com Price: $62.95 |
26.
 |  | Title: The National Toxicology Program's Chemical Data Compendium, Volume VIII by Lawrence H. Keith, Douglas B. Walters ISBN: 0873717228 Publisher: Lewis Publishers, Inc. Pub. Date: 31 December, 1991 List Price: $269.95 Amazon.com Price: $269.95 |
27.
 |  | Title: Laboratory Health and Safety Handbook: A Guide for the Preparation of a Chemical Hygiene Plan by R. Scott Stricoff, Douglas B. Walters ISBN: 0471617563 Publisher: John Wiley & Sons Inc Pub. Date: 01 October, 1990 List Price: $96.95 Amazon.com Price: $96.95 |