Dyfyniad APA

(1995). Placing Concrete With Belt Conveyprs. ACI.

Dyfyniad Arddull Chicago

Placing Concrete With Belt Conveyprs. ACI, 1995.

Dyfyniad MLA

Placing Concrete With Belt Conveyprs. ACI, 1995.

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