@book{13371,
	author = {Gerber, Siegfried E.},
	title = {Modern way of agriculture and its impact on environment /},
	editor = {Technopress)},
	publisher = {s.n.],},
	year = {1990},
	address = {[S.l. :},
	edition = {[2nd ed.].},
	note = {"This booklet has a forerunner, Modern way of agriculture through the help of earthworms, printed in 1982 in Nairobi, Kenya."--Verso of t.p.}
}