Chapin, A. F., & Hassett, G. E. (1960). Credit and collection principles and practice (7th ed.). McGraw-Hill.

Chapin, Albert Franklin, and George E. Hassett. Credit and Collection Principles and Practice. 7th ed. New York: McGraw-Hill, 1960.

Chapin, Albert Franklin, and George E. Hassett. Credit and Collection Principles and Practice. 7th ed. McGraw-Hill, 1960.