References
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- APHA, AWWA and WPCF . 1974 . Standard Methods for the Examination of Water, Sewage and Industrial Wastes , American Public Health Association .
- Cairns , J. Jr. and Messenger , D. 1974 . “An interim report on the effects of prior exposure of sublethal concentrations of the toxicants upon the tolerance of snails to thermal shock” . Archiv. Fuer. Hydrobiologie , 74 (7) : 441 – 447 .
- Buikema , A. L. , Cairns , J. Jr. and Sullivan , G. 1974 . “Development and assessment of acute bioassay technique for the littoral rotifer Philodina acuticornis” Office of the Water Resources Bulletin No. 71 (1974); id., “Evaluation of Philodina acuticornis (Rotifera) as a bioassay organism for heavy metals” . Water Resources Bulletin , 10 (4) : 648 – 661 .