@article {tiner1950,
	title = {Two new species of Trichuris from North America, with redescriptions of Trichuris opaca and Trichuris leporis (Nematoda:Aphasmidia)},
	journal = {Journal of Parasitology},
	volume = {36},
	number = {4},
	year = {1950},
	pages = {350-355},
	author = {Tiner, Jack D.}
}
@article {MeyerAndReilly1950,
	title = {Parasites of muskrats in Maine},
	journal = {American Midland Naturalist},
	volume = {44},
	number = {2},
	year = {1950},
	pages = {467-477},
	author = {Meyer, Marvin C. and Reilly, James R.}
}
@inbook {Chitwood1974,
	title = {Nemic relationships},
	booktitle = {An Introduction to Nematology, Revised Edition},
	year = {1950},
	pages = {191{\textendash}205},
	publisher = {University Park Press},
	organization = {University Park Press},
	chapter = {13},
	address = {Baltimore},
	author = {Chitwood, B. G.},
	editor = {Chitwood, B. G. and Chitwood, M. B.}
}
@book {ChitwoodAndChitwood1950,
	title = {Introduction to Nematology},
	year = {1950},
	publisher = {University Park Press},
	organization = {University Park Press},
	address = {Baltimore},
	author = {Chitwood, B. G. and Chitwood, M. B.}
}
