Παραπομπή APA

Shultz, W. J., & Rein Hardt, H. (1962). Credit and collection management/3e (3rd ed.). Prentice Hall.

Παραπομπή Chicago Style

Shultz, William J., και Hedwing Rein Hardt. Credit and Collection Management/3e. 3rd ed. New Jersey: Prentice Hall, 1962.

Παραπομπή MLA

Shultz, William J., και Hedwing Rein Hardt. Credit and Collection Management/3e. 3rd ed. Prentice Hall, 1962.