@book{39088,
	author = {Canada. Minister of Supply and Services},
	title = {Forage crops in the aspen parklands of Western Canada},
	publisher = {The Minister,},
	year = {1991},
	address = {Ottawa :},
	note = {La biblioteca tiene: v.1 Production -- v.2 Harvesting -- v.3 Pasturing -- v.4 Feeding forage crops}
}