TY - RPRT TI - Map Showing Construction Materials and Nonmetallic Mineral Resources of North Dakota AU - Andrew F. Shride AU - E.C. Fischer AU - D. M. Larrabee AU - and others PY - 1947 DO - 10.3133/mb14 UR - https://pubs.usgs.gov/publication/mb14 ID - mb14 ER -