Dyfyniad APA

BEALL, C. (2003). Concrete and masonry databook. McGraw-Hill.

Dyfyniad Arddull Chicago

BEALL, Christine. Concrete and Masonry Databook. McGraw-Hill, 2003.

Dyfyniad MLA

BEALL, Christine. Concrete and Masonry Databook. McGraw-Hill, 2003.

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