APA-Zitierstil (7. Ausg.)

(1990). Map showing the distribution of chromium, molybdenum, and uranium in stream sediments, Sherbrooke and Lewiston 1 ̊x 2 ̊quadrangles, Maine, New Hampshire, and Vermont. U.S. Geological Survey.

Chicago-Zitierstil (17. Ausg.)

Map Showing the Distribution of Chromium, Molybdenum, and Uranium in Stream Sediments, Sherbrooke and Lewiston 1 ̊x 2 ̊quadrangles, Maine, New Hampshire, and Vermont. Reston, Va: U.S. Geological Survey, 1990.

MLA-Zitierstil (9. Ausg.)

Map Showing the Distribution of Chromium, Molybdenum, and Uranium in Stream Sediments, Sherbrooke and Lewiston 1 ̊x 2 ̊quadrangles, Maine, New Hampshire, and Vermont. U.S. Geological Survey, 1990.