R. H. · R.K. · Robert H. · Robert K.
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Treatment Marshes for Runoff and Polishing | 978-1-138-32262-2 (1-138-32262-8) | 2019 | |
| Treatment Wetlands | 978-1-56670-526-4 (1-56670-526-6) | 2008 | Scott Wallace |
| Treatment Wetlands | 978-0-87371-930-8 (0-87371-930-1) | 1996 | Robert L. Knight |