Dyfyniad APA

MITCHELL R.L. (1980). ENGINEERING ECONOMICS. JOHN WILEY & SONS.

Dyfyniad Arddull Chicago

MITCHELL R.L. ENGINEERING ECONOMICS. N.Y: JOHN WILEY & SONS, 1980.

Dyfyniad MLA

MITCHELL R.L. ENGINEERING ECONOMICS. JOHN WILEY & SONS, 1980.

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