APA (7th ed.) Citation

Whitehead, G., & Whitehead, D. H. (1982). Pitman business correspondence. Pitman.

Chicago Style (17th ed.) Citation

Whitehead, Geoffrey, and David H. Whitehead. Pitman Business Correspondence. London: Pitman, 1982.

MLA (9th ed.) Citation

Whitehead, Geoffrey, and David H. Whitehead. Pitman Business Correspondence. Pitman, 1982.