@book{26343,
	author = {Norway. and Krogh, Johan von,},
	title = {Undersøkelser over Norske lerer.},
	publisher = {I kommission hos Aschehoug,},
	year = {1923-24.},
	series = {Statens raastofkomité. Publikation},
	address = {Kristiania,},
	note = {Vols. 1, 3 by J. v. Krogh; v. 2, 4 by B. Dietrichson.}
}