APA

Portland Cement Association. RD Bulletin nr RD050.01T, . (1978). Research and Developments Bulletins RD001 through RD049. Index. Skokie, IL: Portland Cement Association. RD Bulletin nr RD050.01T.

Chicago

Portland Cement Association. RD Bulletin nr RD050.01T, . 1978. Research and Developments Bulletins RD001 through RD049. Index. Skokie, IL: Portland Cement Association. RD Bulletin nr RD050.01T.

Harvard

Portland Cement Association. RD Bulletin nr RD050.01T, . (1978). Research and Developments Bulletins RD001 through RD049. Index. Skokie, IL: Portland Cement Association. RD Bulletin nr RD050.01T.

MLA

Portland Cement Association. RD Bulletin nr RD050.01T, . Research and Developments Bulletins RD001 through RD049. Index. Skokie, IL: Portland Cement Association. RD Bulletin nr RD050.01T. 1978.