APA (7th ed.) Citation

United States. Bureau of Mines, United States. Bureau of Mines. Division of Industrial Minerals, & United States. Bureau of Mines. Industrial Minerals Data. Directory of principal sand and gravel producers in the United States in .. U.S. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

United States. Bureau of Mines, United States. Bureau of Mines. Division of Industrial Minerals, and United States. Bureau of Mines. Industrial Minerals Data. Directory of Principal Sand and Gravel Producers in the United States in .. Washington, D.C.: U.S. Dept. of the Interior, Bureau of Mines.

MLA (8th ed.) Citation

United States. Bureau of Mines, et al. Directory of Principal Sand and Gravel Producers in the United States in .. U.S. Dept. of the Interior, Bureau of Mines.