Dirty Battles in the Trench: Is It Wise to Use Real Materials for Editing in a Technical Writing Class?
http://www.stc.org/ConfProceed/1993/PDFs/Pg198201.pdf

Stibravy, John A.
STC Proceedings
1993

Abstract:

The use of real materials in a technical writing class involves both advantages and drawbacks. Use of real materials makes the class relate well to the work environment, improves self-esteem, critical thinking, and student motivation. Drawbacks include the problem of finding materials, a lack of course continuity, a lessening of use of the class text, and legal implications. Overall, the use of real materials for classroom editing is recommended.