J.K · J. Knudsen · J. W. · W. K.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Biological Techniques: Collecting, Preserving, and Illustrating Plants and Animals | 978-0-06-043745-9 (0-06-043745-6) | 1966 |
| Collecting and preserving plants and animals | 978-0-06-043744-2 (0-06-043744-8) | 1972 |