Schultz, W. J., & Reinhardt, H. (1962). Credit and collection management (3rd ed.). Prentice-Hall.
Dyfyniad Arddull ChicagoSchultz, William John, and Hedwig Reinhardt. Credit and Collection Management. 3rd ed. Englewood Cliffs, N. J: Prentice-Hall, 1962.
Dyfyniad MLASchultz, William John, and Hedwig Reinhardt. Credit and Collection Management. 3rd ed. Prentice-Hall, 1962.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.