A FURTHER STUDY OF THE ZINC-POLLUTED RIVER YSTWYTH

[1] AFFLECK R. J., 1952, AUSTRALIAN JOUR MARINE AND FRESHWATER RES, V3, P142

[2] STUDIES IN STREAM LIFE IN TRIBUTARIES OF THE WELSH DEE [J]. JOURNAL OF ANIMAL ECOLOGY, 1949, 18 (02) : 193 - 208

[3] BADCOCK RM, 1953, 35 I FRESW RES REP

[4] STUDIES IN THE ECOLOGY OF RIVERS .7. THE ALGAE OF ORGANICALLY ENRICHED WATERS [J]. JOURNAL OF ECOLOGY, 1947, 35 (1-2) : 186 - 191

[5] BUTCHER RW, 1937, 6 WAT POLL RES TECH

[6] A study of the fauna of rivers polluted by lead mining in the Aberystwyth District of Cardiganshire [J]. ANNALS OF APPLIED BIOLOGY, 1924, 11 (01) : 1 - 23

[7] DAVIES TG, 1941, THESIS U COLLEGE WAL

[8] Hustedt F., 1930, SUSSWASSER FLORA MIT

[9] Hynes H. B. N., 1941, TRANS ROY ENT SOC LONDON, V91, P459

[10] A FURTHER ECOLOGICAL STUDY OF CALCAREOUS STREAMS IN THE BLACK MOUNTAIN DISTRICT OF SOUTH WALES [J]. JOURNAL OF ANIMAL ECOLOGY, 1949, 18 (02) : 142 - &

[1] AFFLECK R. J., 1952, AUSTRALIAN JOUR MARINE AND FRESHWATER RES, V3, P142

[2] STUDIES IN STREAM LIFE IN TRIBUTARIES OF THE WELSH DEE [J]. JOURNAL OF ANIMAL ECOLOGY, 1949, 18 (02) : 193 - 208

[3] BADCOCK RM, 1953, 35 I FRESW RES REP

[4] STUDIES IN THE ECOLOGY OF RIVERS .7. THE ALGAE OF ORGANICALLY ENRICHED WATERS [J]. JOURNAL OF ECOLOGY, 1947, 35 (1-2) : 186 - 191

[5] BUTCHER RW, 1937, 6 WAT POLL RES TECH

[6] A study of the fauna of rivers polluted by lead mining in the Aberystwyth District of Cardiganshire [J]. ANNALS OF APPLIED BIOLOGY, 1924, 11 (01) : 1 - 23

[7] DAVIES TG, 1941, THESIS U COLLEGE WAL

[8] Hustedt F., 1930, SUSSWASSER FLORA MIT

[9] Hynes H. B. N., 1941, TRANS ROY ENT SOC LONDON, V91, P459

[10] A FURTHER ECOLOGICAL STUDY OF CALCAREOUS STREAMS IN THE BLACK MOUNTAIN DISTRICT OF SOUTH WALES [J]. JOURNAL OF ANIMAL ECOLOGY, 1949, 18 (02) : 142 - &