@book{110821,
	author = {Candelas Reyes, Gustavo Antonio.},
	title = {Studies on the freshwater plankton of Puerto Rico},
	publisher = {University Microfilms},
	year = {1973.},
	address = {Ann Arbor, Mich.},
	note = {"Authorized facsimile of the author thesis submitted to the Graduate Faculty of the University of Minnesota.}
}