You can download Dictionary of Parasitology by Peter J. Gosling free in pdf format.
The Dictionary of Parasitology reflects current practice in all aspects of parasitology and includes spellings, punctuation, abbreviations, acronyms, symbols, nomenclature, prefixes, and suffixes. It covers the field of modern parasitology with concise, clear, and authoritative precision. The dictionary assigns entries of parasites to the primary divisions of parasitology: human, veterinary, plant, insect, or fish; although in many instances the area of interest may be wide-ranging. The dictionary provides the depth and breadth of knowledge that makes it both an informative and useful volume for beginners and experts in the field, as well as for writers and editors of scientific texts. Entries cover control measures, immunology, physiology, pharmacology, etc., and each are labeled according to the most appropriate area to which they relate.