

@article {2017,
	title = {On <i>Balantidium coli</i> (Malmsten) and <i>Balantidium suis</i> (sp. nov.) with an account of their neuromotor apparatus},
	journal = {University of California Publications in Zoology},
	volume = {20},
	year = {1922},
	pages = {243-300},
	author = {McDonald, JD}
}
