APA Citation

Eckel, E. C. 1., & Burchard, E. F. 1. (1913). Portland cement materials and industry in the United States. [Washington, D.C.]: Department of the Interior, United States Geological Survey.

Chicago Style Citation

Eckel, Edwin C. 1875-1941,, and Ernest F. 1875-1961 Burchard. Portland Cement Materials and Industry in the United States. [Washington, D.C.]: Department of the Interior, United States Geological Survey, 1913.

MLA Citation

Eckel, Edwin C. 1875-1941,, and Ernest F. 1875-1961 Burchard. Portland Cement Materials and Industry in the United States. [Washington, D.C.]: Department of the Interior, United States Geological Survey, 1913.

Warning: These citations may not always be 100% accurate.