1. Biology of the predaceous mite, Pergamasus quisquiliarum, on the garden symphylan, Scutigerella immaculata, in the laboratory;Berry;Ann. Entomol. Soc. Am.,1973
2. Eastman, J.R., 1997. Idrisi32 for Windows, User’s Guide. Clark Labs for Cartographic Technology and Geographic Analysis, Worchester, MA.
3. Edwards, C.A., 1957a. Bionomics of Symphyla. Ph.D. Dissertation, University of Wisconsin, Madison, WI.
4. Edwards, C.A., 1957b. Simple techniques for rearing collembola, symphyla and other small soil-inhabiting arthropods. In: Kevan, D.K.M. (Ed.), Soil Zoology. Butterworths, London, pp. 412–416.
5. The ecology of symphyla. Part I. Populations;Edwards;Entomol. Exp. Appl.,1958