Shultz, W. J., & Rein Hardt, H. (1962). Credit and collection management/3e (3rd ed.). Prentice Hall.
Dyfyniad Arddull ChicagoShultz, William J., and Hedwing Rein Hardt. Credit and Collection Management/3e. 3rd ed. New Jersey: Prentice Hall, 1962.
Dyfyniad MLAShultz, William J., and Hedwing Rein Hardt. Credit and Collection Management/3e. 3rd ed. Prentice Hall, 1962.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.