Shubin, J. A. (1957). Buisness management (2nd rev ed.). Barnes and Noble.
Dyfyniad Arddull ChicagoShubin, John A. Buisness Management. 2nd rev ed. New York: Barnes and Noble, 1957.
Dyfyniad MLAShubin, John A. Buisness Management. 2nd rev ed. Barnes and Noble, 1957.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.