{"id":"001181116","type":"book","title":"Early ironworking and its impact on the environment: palaeoecological evidence from Bryn y Castell Hillfort, Snowdonia, North Wales","pages":"199-219","container-title":"Proceedings of the Prehistoric Society, New Series, 63 (1997","author":[{"family":"Mighall","given":"T. M."}],"issued":{"raw":"1997"}}