| Avaa | Golterman, H. L. Clymo, R. S. Ohnstad, M. A. M.
| Methods for Physical and Chemical Analysis of Fresh Waters | | kirja | limnologia, makea vesi | Blackwell Scientific Publications | Oxford | 1978 | 213 | 0-632-009459-2 | IBP Handbook No 8 | Second edition
| H-Limnologia |