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Volcanoes /
by Robert I. Tilling.

APA Citation

Tilling, R. I., Geological Survey (U.S.). (1992). Volcanoes. Alexandria, VA: U.S. Dept. of the Interior, Geological Survey .

MLA Citation

Tilling, Robert I, and Geological Survey (U.S.). Volcanoes. Alexandria, VA: U.S. Dept. of the Interior, Geological Survey , 1992.

Warning: These citations may not always be complete (especially for serials).