@book{2320,
	author = {L'Azienda Agraria Sperimentale "Vittorio Tadini".},
	title = {Lecciones de agricultura biológica},
	publisher = {Mundi-Prensa,},
	year = {1989},
	series = {Agroguías Mundi-Prensa},
	address = {Madrid :},
	note = {D45-103}
}