From “Den nye altmuligboka” (“The new book of everything”), Per Hagen (J.W.Cappelens Forlag, Oslo 1958). from http://urn.nb.no/URN:NBN:no-nb_digibok_2012110706228
From “Den nye altmuligboka” (“The new book of everything”), Per Hagen (J.W.Cappelens Forlag, Oslo 1958). from http://urn.nb.no/URN:NBN:no-nb_digibok_2012110706228