APA (7th ed.) Citation

Mitchell, E. (1977). The businessman's guide to letter-writing and to the law on letters (2. ed.). Business Books.

Chicago Style (17th ed.) Citation

Mitchell, Ewan. The Businessman's Guide to Letter-writing and to the Law on Letters. 2. ed. London: Business Books, 1977.

MLA (9th ed.) Citation

Mitchell, Ewan. The Businessman's Guide to Letter-writing and to the Law on Letters. 2. ed. Business Books, 1977.