1.
 |  | Title: Patty's Industrial Hygiene and Toxicology CD-ROM Version 2.0, Update for Current Users by George D. Clayton, Florence E. Clayton, Lewis J. Cralley, Lester V. Cralley, Robert Harris, James Bus ISBN: 0471244902 Publisher: John Wiley & Sons Pub. Date: 09 February, 1998 List Price: $435.00 Amazon.com Price: $435.00 |
2.
 |  | Title: Patty's Industrial Hygiene and Toxicology: Volume 3: Theory and Rationale of Industrial Hygiene Practice: The Work Environment, Parts A and B by Lewis, Cralley, Lester Cralley, James S. Bus, Lewis J. Cralley, Robert L. Harris, Lester V. Cralley ISBN: 0471586773 Publisher: John Wiley & Sons Pub. Date: April, 1995 List Price: $455.00 Amazon.com Price: $455.00 |
3.
 |  | Title: Patty's Industrial Hygiene and Toxicology Cd-Rom Version 2.0, New Users by George D. Clayton, Florence E. Clayton, Lewis J. Cralley, Lester V. Cralley, Robert Harris, James Bus ISBN: 0471181927 Publisher: John Wiley & Sons Pub. Date: February, 1998 List Price: $2,950.00 Amazon.com Price: $2,950.00 |
4.
 |  | Title: Patty's Industrial Hygiene and Toxicology: Theory and Rationale of Industrial Hygiene Practice: Biological Responses, Part B by Lewis J. Cralley, Lester V. Cralley, James S. Bus ISBN: 0471530654 Publisher: Wiley-Interscience Pub. Date: February, 1995 List Price: $249.00 Amazon.com Price: $249.00 |