APA (7th ed.) Citation

Butterworth, J. (1979). Debt collection letters in ten languages: With notes on terminology, practice and methods of payment in different countries. AMACOM.

Chicago Style (17th ed.) Citation

Butterworth, John. Debt Collection Letters in Ten Languages: With Notes on Terminology, Practice and Methods of Payment in Different Countries. New York: AMACOM, 1979.

MLA (9th ed.) Citation

Butterworth, John. Debt Collection Letters in Ten Languages: With Notes on Terminology, Practice and Methods of Payment in Different Countries. AMACOM, 1979.