| Avaa | Woolland, J. V.
Jones, J. W.
| Studies on grayling, Thymallus thymallus L., in Llyn Tegid and the upper River Dee, North Wales : I. Age and growth | | artikkeli | harjus - harri | | | 1975 | 25 | | | Eripainos: J. Fish Biol. (1975... | I-Kalatutkimus: Harjus (avokotelo 3) |