Dyfyniad APA

(2007). Architectural record April 2007. McGraw-Hill Contruction.

Dyfyniad Arddull Chicago

Architectural Record April 2007. McGraw-Hill Contruction, 2007.

Dyfyniad MLA

Architectural Record April 2007. McGraw-Hill Contruction, 2007.

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