Dyfyniad APA

Levine, J. P. (1990). Doing business in Chicago. Homewood: Dow Jones-Irwin.

Dyfyniad Arddull Chicago

Levine, Jeffrey P. Doing Business in Chicago. Homewood: Dow Jones-Irwin, 1990.

Dyfyniad MLA

Levine, Jeffrey P. Doing Business in Chicago. Homewood: Dow Jones-Irwin, 1990.

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