Dyfyniad APA

YOUNG, W. C. (1989). Roark's Formulas For Stress & Strain. McGraw-Hill.

Dyfyniad Arddull Chicago

YOUNG, Warren C. Roark's Formulas For Stress & Strain. McGraw-Hill, 1989.

Dyfyniad MLA

YOUNG, Warren C. Roark's Formulas For Stress & Strain. McGraw-Hill, 1989.

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