Your search returned 2 results.

Results
	1.	No cover image available Stratigraphic significance and petrology of phosphate nodules at base of Niobrara Formation, east flank of Black Hills, South Dakota / by Harry A. Tourtelot and W. A. Cobban by Tourtelot, Harry Allison, 1918- Cobban, William Aubrey, 1916- [jt. aut] Series: Geological Survey professional paper ; no.594-L \| Shorter contributions to general geology Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Washington, D.C. : United States Government Printing Office, 1968 Availability: Items available for loan: National Library of India (1)Call number: U.S 551.8975243 T 646 st. Place hold Request article Save to lists
	2.	No cover image available Stratigraphic significance and petrology of phosphate nodules at base of Niobrara Formation, east flank of Black Hills, South Dakota / by Harry A. Tourtelot and W. A. Cobban by Tourtelot, Harry Allison, 1918- Cobban, William Aubrey, 1916- [jt. aut] Series: Geological Survey professional paper ; no.594-L \| Shorter contributions to general geology Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Washington, D.C. : United States Government Printing Office, 1968 Availability: Items available for loan: National Library of India (1)Call number: U.S 551.8975243 T 646 st. Place hold Request article Save to lists

Refine your search