APA (7th ed.) Citation

Parr, W. M. (1976). Executive's guide to effective letters and reports. Parker Pub. Co..

Chicago Style (17th ed.) Citation

Parr, William M. Executive's Guide to Effective Letters and Reports. West Nyack, N.Y.: Parker Pub. Co., 1976.

MLA (9th ed.) Citation

Parr, William M. Executive's Guide to Effective Letters and Reports. Parker Pub. Co., 1976.