APA (7th ed.) Citation

Dartnell Corporation & Lewis, L. L. (1969). The Dartnell business-letter deskbook. [publisher not identified].

Chicago Style (17th ed.) Citation

Dartnell Corporation and Leslie Llewellyn Lewis. The Dartnell Business-letter Deskbook. Chicago: [publisher not identified], 1969.

MLA (9th ed.) Citation

Dartnell Corporation and Leslie Llewellyn Lewis. The Dartnell Business-letter Deskbook. [publisher not identified], 1969.

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