Conclusion:

For in-depth coverage of purposes and patterns, you can purchase the following book from an ACC bookstore: Purpose, Pattern, and Process by Lennis Polnac. 

Works Cited

Dworetzky, Tom. “What to Do With Our Addiction Problem: Waging Peace on Drugs.” Omni. Sept. 1993.

Polnac, Lennis.  Purpose, Pattern, and Process.  7th ed. Dubuque, Kendall/Hunt, 2005.

Kinneavy, James, William McCleary, and Neil Nakadate.  Writing in the Liberal Arts Tradition.  New York:

          Harper & Row, 1985.