The Branchiobdellidae (Oligochaeta) of North American crayfishes Goodnight, Clarence J. (Clarence James), 1914-1987 creator text book Urbana The University of Illinois press 1940 1940
print
ENG Contribution from the Zoological laboratory of the University of Illinois. no. 537. Branchiobdellidae Crayfish QL391.O4 G67 595.16 Illinois biological monographs, v. 17, no. 3 https://www.biodiversitylibrary.org/bibliography/50176 772384 10.5962/bhl.title.50176