Dyfyniad APA

Lewis, R. (1996). Intermediate retail & distributionRoger Lewis, Roger Trevitt. Hodder&Stoughton.

Dyfyniad Arddull Chicago

Lewis, Roger. Intermediate Retail & DistributionRoger Lewis, Roger Trevitt. Hodder&Stoughton, 1996.

Dyfyniad MLA

Lewis, Roger. Intermediate Retail & DistributionRoger Lewis, Roger Trevitt. Hodder&Stoughton, 1996.

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