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Chitwood, B. G. (1933). A revised classification of the Nematoda. The Journal of Parasitology, Papers in Helminthology, Ninth Annual Meeting. Vol. 20, No. 2 (Dec., 1933), pp. 115-148.
Chitwood, B. G. (1933). A revised classification of the Nematoda. The Journal of Parasitology, Papers in Helminthology, Ninth Annual Meeting. Vol. 20, No. 2 (Dec., 1933), pp. 115-148.