@book {19,
	title = {Illustrated Flora of the Canadian Arctic Archipelago},
	series = {National Museum of Canada Bulletin},
	year = {1957},
	publisher = {National Museum of Canada},
	organization = {National Museum of Canada},
	edition = {146},
	address = {Ottawa},
	author = {Porsild, A. E.}
}
@book {9,
	title = {Botany of the Canadian Eastern Arctic Part 1: Pteridophyta and Spermatophyta},
	series = {National Museum of Canada Bulletin},
	volume = {92},
	year = {1940},
	publisher = {National Museum of Canada},
	organization = {National Museum of Canada},
	address = {Ottawa},
	author = {Polunin, N.}
}
