Dyfyniad APA

HUMPHREYS , K. (1991). JELENS COST AND OPTIMIZATION ENGINEERING. MCGRAW HILL.

Dyfyniad Arddull Chicago

HUMPHREYS , K.K. JELENS COST AND OPTIMIZATION ENGINEERING. NEW-YORK: MCGRAW HILL, 1991.

Dyfyniad MLA

HUMPHREYS , K.K. JELENS COST AND OPTIMIZATION ENGINEERING. MCGRAW HILL, 1991.

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