Portland cement : background information for proposed revisions to standards
MLA
Portland Cement: Background Information for Proposed Revisions to Standards. Research Triangle Park, NC: U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Air Quality Planning and Standards , 1985
APA, 7th edition
(1985). Portland cement: background information for proposed revisions to standards. Research Triangle Park, NC: U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Air Quality Planning and Standards
Chicago, 17th edition
Portland cement: background information for proposed revisions to standards. Research Triangle Park, NC: U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Air Quality Planning and Standards , 1985