@book{81733,
	author = {Conference on Sustainable Agriculture : Evaluation of New Paradigms and Old Practices and Instituto Internacional para la Agricultura, la Alimentación y el Desarrollo.},
	title = {Alternatives to conventional modern agriculture for meeting world needs in the next century :},
	publisher = {Instituto Internacional para la Agricultura, la Alimentación y el Desarrollo,},
	year = {1999.},
	address = {Ithaca, N.Y. :}
}