@book{59723,
	author = {Weber, Adolf. and Christian-Albrechts-Universität zu Kiel.},
	title = {Expected developments of the power-labor ratio in agriculture through intercountry comparison /},
	publisher = {Institut für Agrarpolitik und Marktlehre der Christian-Albrechts-Universität,},
	year = {1973.},
	address = {Kiel, Federal Republic of Germany :}
}