APA (7th ed.) Citation

Booher, D. D. (1988). To the letter: A handbook of model letters for the busy executive. Lexington Books.

Chicago Style (17th ed.) Citation

Booher, Dianna Daniels. To the Letter: A Handbook of Model Letters for the Busy Executive. Lexington, Mass.: Lexington Books, 1988.

MLA (9th ed.) Citation

Booher, Dianna Daniels. To the Letter: A Handbook of Model Letters for the Busy Executive. Lexington Books, 1988.