Dyfyniad APA

Read, G. (2004). Sewers: Replacement and new construction. Elsevier.

Dyfyniad Arddull Chicago

Read, Geoffrey. Sewers: Replacement and New Construction. Boston: Elsevier, 2004.

Dyfyniad MLA

Read, Geoffrey. Sewers: Replacement and New Construction. Elsevier, 2004.

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