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	1.	No cover image available Gravity and aeromagnetic studies of the Powder River Basin and surrounding areas, southeastern Montana, northeastern Wyoming, and western South Dakota / by Stephen L. Robbins by Robbins, Stephen L. (Stephen Leroy), 1927- Series: U.S. Geological Survey bulletin ; 1917 Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Denver, CO : U.S. Geological Survey, 1994 Availability: Items available for loan: National Library of India (1)Call number: U.S. 551.80978 Ro 553. Place hold Request article Save to lists
	2.	No cover image available Stratigraphy and tectonic implications of Upper Cretaceous rocks in the Powder River Basin, northeastern Wyoming and southeastern Montana / by E.A. Merewether by Merewether, E. A Geological Survey (U.S.) Series: U.S. Geological Survey bulletin ; 1917-T Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Washington, D.C. : U.S. G.P.O., 1996 Availability: Items available for loan: National Library of India (1)Call number: U.S. 551.7709787 M 5411 s. Place hold Request article Save to lists

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