@book{67140,
	author = {Ontario. Department of Education},
	title = {Ontario Teachers' Manuals: Nature Study},
	publisher = {Project Gutenberg,},
	year = {2008},
	address = {Salt Lake City, UT :},
	note = {Release date is 2008-07-28},
	url = {https://www.gutenberg.org/ebooks/26139}
}