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Pickavance, J. R.; Cook, D. G. (1971). Tubifex newfein.sp. (Oligochaeta, Tubificidae) with a preliminary reappraisal of the genus. Canadian Journal of Zoology. 49(2): 249-254.
Pickavance, J. R.; Cook, D. G. (1971). Tubifex newfein.sp. (Oligochaeta, Tubificidae) with a preliminary reappraisal of the genus. Canadian Journal of Zoology. 49(2): 249-254.
