@book {273,
	title = {Freshwater plants of papua new guinea},
	year = {1985},
	publisher = {University of Papua New Guinea Press},
	organization = {University of Papua New Guinea Press},
	address = {Port Moresby},
	issn = {9980-84-003-X},
	author = {G. J. Leach and P. L. Osborne}
}
