Hillel, D. (ed.) (2005): Encyclopedia of Soils in the Environment (Volumes 1–4). Elsevier, Oxford, UK, and St Louis, MO, USA. xxxiv + 2119 pp.
Hillyard, P. (2007): The Private Life of Spiders. Princeton University Press, Princeton & Oxford.
Hillyard, P.D. (2005): Harvestmen. Synopses of the British Fauna (New Series) No. 4. London, The Linnean Society of London and The Estuarine and Coastal Sciences Association.
Hingley, M.R. (1971): The ascomycete fungus, Daldinia concentrica as a habitat for animals. Journal of Animal Ecology, 40: 17-32.
Hirai, T., Matsui, M. (2002): Feeding ecology of Bufo japonicus formosus from the montane region of Kyoto, Japan. J. Herpetol., 36: 719-723.
Hirst, S. (1920):Myriopoda – Species of Arachnida and Myriopoda (scorpions, spiders, mites, ticks and centipedes) injurious to man. British Museum (Natura History) Economic Series, 6: 53-55.