J. G. · J. L. · J. Ladd · L.G.
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Environmental auditing: Fundamentals and techniques | 978-0-915094-10-3 (0-915094-10-X) | 1987 | |
| Environmental, health, and safety auditor's handbook | 978-0-915094-09-7 (0-915094-09-6) | 1988 | Gilbert S. Hedstrom · Maryanne DiBerto |