Davis, H. A., & Wig, R. J. (1915). Value of high-pressure steam test of Portland cements. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationDavis, Harry Aaron, and Rudolph James Wig. Value of High-pressure Steam Test of Portland Cements. [Washington?]: U.S. Government Printing Office, 1915.
MLA (9th ed.) CitationDavis, Harry Aaron, and Rudolph James Wig. Value of High-pressure Steam Test of Portland Cements. U.S. Government Printing Office, 1915.
Warning: These citations may not always be 100% accurate.