(1990). Maps showing the distribution of tin, tungsten, arsenic, gold, and silver in nonmagnetic heavy-mineral concentrates derived from stream sediments, Sherbrooke and Lewiston 1x̊2 ̊quadrangles, Maine, New Hampshire, and Vermont. U.S. Geological Survey.
Chicago-Zitierstil (17. Ausg.)Maps Showing the Distribution of Tin, Tungsten, Arsenic, Gold, and Silver in Nonmagnetic Heavy-mineral Concentrates Derived from Stream Sediments, Sherbrooke and Lewiston 1x̊2 ̊quadrangles, Maine, New Hampshire, and Vermont. Reston, VA: U.S. Geological Survey, 1990.
MLA-Zitierstil (9. Ausg.)Maps Showing the Distribution of Tin, Tungsten, Arsenic, Gold, and Silver in Nonmagnetic Heavy-mineral Concentrates Derived from Stream Sediments, Sherbrooke and Lewiston 1x̊2 ̊quadrangles, Maine, New Hampshire, and Vermont. U.S. Geological Survey, 1990.