Dyfyniad APA

TACK ALFRED. (1981). EXECUTIVE DEVELOPMENT. WORLD`S WORK LTD.

Dyfyniad Arddull Chicago

TACK ALFRED. EXECUTIVE DEVELOPMENT. LONDON: WORLD`S WORK LTD, 1981.

Dyfyniad MLA

TACK ALFRED. EXECUTIVE DEVELOPMENT. WORLD`S WORK LTD, 1981.

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