| title | ISBN-13 | year of publication |
|---|---|---|
| Economic analysis of forestry projects | 978-92-5-100827-0 | 1979 |
| Economic assessment of forestry project impacts | 978-92-5-103285-5 | 1992 |
| Guidelines for Economic Appraisal of Watershed Management Projects | 978-92-5-102555-0 | 1987 |
| Planning and managing forestry research: Guidelines for managers | 978-92-5-102963-3 | 1990 |
| Research management in forestry | 978-92-5-103202-2 | 1992 |
H.G. · H. Gregersen · H. M. · H. M. G. · Hans M. Gregersen · M G***