@book{5590,
	author = {Sundberg, U.},
	title = {Operational efficiency in forestry /},
	publisher = {Kluwer Academic Publishers,},
	year = {c1988-c1989.},
	series = {Forestry sciences ;},
	address = {Dordrecht ;},
	note = {Editors' names in reverse order in v. 2.}
}