@book{28213,
	author = {Sundius, Nils,},
	title = {The composition of eckermannite and its position in the amphibole group,},
	publisher = {Kungl. boktryckeriet, P.A. Norstedt & söner,},
	year = {1946.},
	series = {Sweden. Geologiska undersökningen. Ser. C. Avhandlingar och uppsatser.},
	address = {Stockholm,},
	note = {At head of title: Sveriges geologiska undersökning ...}
}