Richardson, T., & Thies, C. [ca. 2012]. Keyboarding and Beyond : Introductory Typing and Word Processing [Cd]. Dulles, VA: Mercury Learning and Information.

RICHARDSON, Theodor und THIES, Charles, 2012. Keyboarding and Beyond : Introductory Typing and Word Processing. Dulles, VA: Mercury Learning and Information. ISBN 9781936420650.

Richardson, T., und C. Thies. Keyboarding and Beyond : Introductory Typing and Word Processing. cd, Mercury Learning and Information, 2012.

Richardson, Theodor/Thies, Charles: Keyboarding and Beyond : Introductory Typing and Word Processing, Dulles, VA 2012.

Richardson, T. und Thies, C. (2012), Keyboarding and Beyond : Introductory Typing and Word Processing, Bd. , Mercury Learning and Information, Dulles, VA.