Eckel, E. C., & Burchard, E. F. (1913). Portland cement materials and industry in the United States. Department of the Interior, United States Geological Survey.
Chicago Style (17th ed.) CitationEckel, Edwin C., and Ernest F. Burchard. Portland Cement Materials and Industry in the United States. [Washington, D.C.]: Department of the Interior, United States Geological Survey, 1913.
MLA (9th ed.) CitationEckel, Edwin C., and Ernest F. Burchard. Portland Cement Materials and Industry in the United States. Department of the Interior, United States Geological Survey, 1913.
Warning: These citations may not always be 100% accurate.