@booklet {553,
	title = {A Fourth Contribution to the Knowledge of Neotropical Platyrhacid Millipeds (Diplopoda: Polydesmida)},
	howpublished = {Proceedings of the United States National Museum},
	volume = {111},
	year = {1960},
	pages = {17-31},
	publisher = {Smithsonian Institution Press, [etc.]},
	author = {Hoffman, Richard L.}
}
