1. P. B. Cornwell, The incidence of fleas and bedbugs in Britain., Int. Pest Control, 16 :1974 .17 –20 .
2. S. L. Doggett, M. J. Geary, and R. C. Russell .The resurgence of bed bugs in Australia: with notes on their ecology and control., Environ. Health, 4 :2004 .30 –38 .
3. T. Hallas, H. Mourier, and O. Winding .Seasonal variation and trends for some indoor insects in Denmark., Entomol. Med., 45 :1977 .77 –88 .
4. The Distribution of Cimex lectularius in Towns in England and Wales
5. .Report on the bed bug., Rep. Publ. Health Med. Subj., 72 :1934 .1 –46 .