APA (7th ed.) Citation

Usher, G. R. (1991). Dear sir/madam: Writing business letters and memos. Thomas Nelson.

Chicago Style (17th ed.) Citation

Usher, Geoffrey R. Dear Sir/madam: Writing Business Letters and Memos. Melbourne: Thomas Nelson, 1991.

MLA (9th ed.) Citation

Usher, Geoffrey R. Dear Sir/madam: Writing Business Letters and Memos. Thomas Nelson, 1991.

Warning: These citations may not always be 100% accurate.