Tham khảo Giun nhung

  1. Holm, E.; Dippenaar-Schoeman, A. (2010). The Arthropods of Southern Africa. ISBN 978-0-7993-4689-3. [cần số trang]
  2. Prothero, D. R.; Buell, C. D. (2007). Evolution: What the Fossils Say and Why It Matters. New York: Columbia University Press. tr. 193. ISBN 978-0-231-13962-5
  3. Piper, Ross (2007). “Velvet Worms”. Extraordinary Animals: An Encyclopedia of Curious and Unusual Animals. Greenwood Press. tr. 109–11. ISBN 978-0-313-33922-6
  4. Garwood, Russell J.; Edgecombe, Gregory D.; Charbonnier, Sylvain; Chabard, Dominique; Sotty, Daniel; Giribet, Gonzalo (2016). “Carboniferous Onychophora from Montceau-les-Mines, France, and onychophoran terrestrialization”. Invertebrate Biology 135 (3): 179–190. ISSN 1077-8306. doi:10.1111/ivb.12130.  Đã bỏ qua tham số không rõ |doi-access= (trợ giúp)
  5. Fishelson, L. (1978). Zoology 1 (ấn bản 3). Israel: Hakibutz Hameuchad Publishing. tr. 430. Bản mẫu:Vs

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WikiPedia: Giun nhung http://www.itis.gov/servlet/SingleRpt/SingleRpt?se... http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwta... //dx.doi.org/10.1111%2Fivb.12130 //dx.doi.org/10.15625%2F0866-7160%2Fv32n4.718 http://www.eol.org/pages/6927 //www.worldcat.org/issn/1077-8306 http://vjs.ac.vn/index.php/vjbio/article/view/718 http://vjs.ac.vn/index.php/vjbio/article/view/718/... http://elib.tic.edu.vn:8080/dspace/bitstream/12345... https://books.google.com/books?id=eqegRf2UstIC&pg=...