Dyfyniad APA

(1985). Boston business. [Boston, Mass.]: [Bergenheim & Associates].

Dyfyniad Arddull Chicago

Boston Business. [Boston, Mass.]: [Bergenheim & Associates], 1985.

Dyfyniad MLA

Boston Business. [Boston, Mass.]: [Bergenheim & Associates], 1985.

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