APA (7th ed.) Citation

Crawford, T. J. (1987). Century 21 keyboarding, formatting, and document processing (4th ed.). South-Western Pub. Co..

Chicago Style (17th ed.) Citation

Crawford, T. James. Century 21 Keyboarding, Formatting, and Document Processing. 4th ed. Cincinnati: South-Western Pub. Co., 1987.

MLA (9th ed.) Citation

Crawford, T. James. Century 21 Keyboarding, Formatting, and Document Processing. 4th ed. South-Western Pub. Co., 1987.