Dyfyniad APA

LANCASTER,J.F. (1981). METALLURGY OF WELDING 3RD ED. GEORGE ALLEN AND SONS.

Dyfyniad Arddull Chicago

LANCASTER,J.F. METALLURGY OF WELDING 3RD ED. LONDON: GEORGE ALLEN AND SONS, 1981.

Dyfyniad MLA

LANCASTER,J.F. METALLURGY OF WELDING 3RD ED. GEORGE ALLEN AND SONS, 1981.

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