Dyfyniad APA

Ferretti, A. P. (1963). National Economics. National Foremen's Institute.

Dyfyniad Arddull Chicago

Ferretti, Andrew P. National Economics. Waterford, Conn: National Foremen's Institute, 1963.

Dyfyniad MLA

Ferretti, Andrew P. National Economics. National Foremen's Institute, 1963.

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