(1912). U.S. Government specifications for Portland cement. [publisher not identified].
Chicago Style (17th ed.) CitationU.S. Government Specifications for Portland Cement. Washington, D.C.: [publisher not identified], 1912.
MLA (9th ed.) CitationU.S. Government Specifications for Portland Cement. [publisher not identified], 1912.
Warning: These citations may not always be 100% accurate.