@book{493,
	author = {BIOTOL (Project)},
	title = {Biotechnological innovations in crop improvement.},
	publisher = {Butterworth-Heinemann,},
	year = {1991.},
	series = {Biotechnology by Open Learning},
	address = {Oxford [England] ;},
	note = {"Published on behalf of Open university and Thames Polytechnic."},
	url = {http://www.loc.gov/catdir/toc/els032/93109628.html}
}