Tepordei, V. V., Valdes, O. E., & Shedd, K. B. (1989). Crushed stone and sand and gravel production by state districts: 1985-1986. U.S. Bureau of Mines.
Chicago Style (17th ed.) CitationTepordei, Valentin V., Olga E. Valdes, and Kim B. Shedd. Crushed Stone and Sand and Gravel Production by State Districts: 1985-1986. [Washington, D.C.?]: U.S. Bureau of Mines, 1989.
MLA (9th ed.) CitationTepordei, Valentin V., et al. Crushed Stone and Sand and Gravel Production by State Districts: 1985-1986. U.S. Bureau of Mines, 1989.
Warning: These citations may not always be 100% accurate.