1. Block, E.M. and C.J. Goodnight, 1976, The effect of X-irradiation on the coelomic cells of the tubificid Limnodrilus hoffmeisteri. Trans. Amer. Microsc. Soc., 95:23–34.
2. Brinkhurst, R.O., 1965, The biology of the Tubificidae with special reference to pollution. Proc. 3rd Seminar on Water Quality Criteria, Cincinnati,1962:57–65.
3. Brinkhurst, 1972, The role of sludge worms in eutrophication. E.P.A. Ecological Research Series R3-72-004. 68 pp.
4. Brinkhurst, 1974, Factors mediating interspecific aggregation of tubificid oligochaetes. J. Fish. Res. Bd. Canada, 31:460–462.
5. Brinkhurst, R.O., A.L. Hamilton and H.B. Herrington, 1968, Components of the bottom fauna of the St. Lawrence Great Lakes. Univ. Toronto Gt. Lakes Inst. P.R., 33:1–49.