TY - RPRT TI - A laboratory study of some physical properties of sulfide ores in igneous and metamorphic rocks from the Burnt Nubble area, Somerset County, Maine AU - Gordon R. Johnson AU - Lennart A. Anderson PY - 1981 DO - 10.3133/ofr81669 UR - https://pubs.usgs.gov/publication/ofr81669 ID - ofr81669 ER -