Handbook of Zoology. Gastrotricha, Cycloneuralia and Gnathifera: 2. Nematoda
Schmidt-Rhaesa, A. (Ed.) (2013). Handbook of Zoology. Gastrotricha, Cycloneuralia and Gnathifera: 2. Nematoda. Walter De Gruyter: Berlin. ISBN 978-3-11-027375-5. xvi, 759 pp.
