@book{23271,
	author = {Brightman, Frank H. and Nicholson, B. E. il.},
	title = {The Oxford Book of Flowerless Plants: Ferns, Fungi, Mosses and Liverworts, Lichens, y Seaweeds /},
	publisher = {Oxford University Press,},
	year = {1985.},
	address = {Manchester :}
}