{"id":"000030737","type":"book","title":"Notes on the composition of pre-european copper and copper-alloy artefacts from the Transvaal. - Marshalltown","container-title":"Journal of the South African Institute of Minning and Metallurgy ; 1975, S. 185-191 : 4 Tab","author":[{"family":"Friede","given":"H. M."}],"issued":{"raw":"1975"}}