@article {	617	,
	title = {Infestation of broiler breeder houses with hen fleas.},
	journal = {Parasitology 79(3): xiii.},
	year = {1979},
	author = {Titchener, R. N.}
}
@article {	618	,
	title = {The use of Permethrin to control an outbreak of hen fleas (Ceratophyllus gallinae).},
	journal = {Poultry Science 62(4): 608-611.},
	year = {1983},
	author = {Titchener, R. N.}
}
