@book{92454,
	author = {Joint Annual Meeting of American Society of Agronomy on Crop Residue Management Systems, Houston, Nov.28-Dec.3, 1976.},
	title = {Crop residue management systems; proceedings},
	publisher = {ASA},
	year = {1978},
	series = {ASA Special Publication; no.31},
	address = {Madison}
}