"Formal Opinion 90-357, May 10, 1990"(PDF). American Bar Association Standing Committee on Ethics and Professional Responsibility. Retrieved 2016-02-29.
Authors unknown (2003 to 2009). Jobs-Salary.com: "A total of 18 real of counsel salary data listed. Salary Average: $216,019 Salary Range: $62,000 $400,000", ranging from 2003 to 2009. Retrieved from http://www.jobs-salary.com/of-counsel-salary.htm.
