Dennis G. Collins has a Ph.D. from Illinois Institute of Technology in 1975, has a listing in Marquis Who's Who in America and Who's Who in the World for over ten years, and retired at the end of t...view moreDennis G. Collins has a Ph.D. from Illinois Institute of Technology in 1975, has a listing in Marquis Who's Who in America and Who's Who in the World for over ten years, and retired at the end of the decade from University of Puerto Rico, Mayaguez.view less