@book{19266,
	author = {Hassler, Emilio},
	title = {Pteridophytorum paraguariensium et regionum argentinarum adjacentium conspectus criticus :},
	publisher = {Peuser,},
	year = {1928.},
	series = {Trabajos / Instituto de Botánica y Farmacología ;},
	address = {Buenos Aires :}
}