Dyfyniad APA

Brown, C. C. Directory of American cement industries and hand-book for cement users. Municipal engineering Co.

Dyfyniad Arddull Chicago

Brown, Charles Carroll. Directory of American Cement Industries and Hand-book for Cement Users. Indianapolis New York: Municipal engineering Co.

Dyfyniad MLA

Brown, Charles Carroll. Directory of American Cement Industries and Hand-book for Cement Users. Municipal engineering Co.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.