Dyfyniad APA

PUFFETT, R. (1986). Plumbing Services Volume 3, Gas Fitting Rj Puffett, Lj. Hossack. McGraw-Hill.

Dyfyniad Arddull Chicago

PUFFETT, RJ. Plumbing Services Volume 3, Gas Fitting Rj Puffett, Lj. Hossack. McGraw-Hill, 1986.

Dyfyniad MLA

PUFFETT, RJ. Plumbing Services Volume 3, Gas Fitting Rj Puffett, Lj. Hossack. McGraw-Hill, 1986.

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