@book{4914,
	author = {Crawford, R. M. M.},
	title = {Plant life in aquatic and amphibious habitats /},
	publisher = {Blackwell Scientific Publications ;},
	year = {c1987.},
	series = {Special publication number 5 of the British Ecological Society.},
	address = {Oxford :},
	note = {"Produced as a tribute to D.H.N. Spence."}
}