| Avaa | Cairns, John Jr. toim.
Dickson, K. L. toim.
| Biological methods for the assesment of water quality : A symposium presented at the Seventy-fifth Annual Meeting American Society for Testing and Materials | | kirja | arviointi, biologia, kokoukset, konferenssit, mittausmenetelmät, vedenlaatu - veden laatu | American Society for Testing and Material | Philadelphia | 1973 | 256 | | | | H-Limnologia |