@book{5119,
	author = {Davidson, Joan.},
	title = {Conservation and agriculture /},
	publisher = {Wiley,},
	year = {c1977.},
	address = {Chichester ;},
	note = {"A Wiley-Interscience publication."},
	url = {http://www.loc.gov/catdir/toc/fy0713/77000697.html}
}