Jim Ringelman PhD books & textbook
Ducks Unlimited Magazine, Vol. 70, No. 6 (November December, 2006)
Matt Young Gary Koehler Chad Manlove Doug Larsen Bill Nichol Wade Bourne Don Young Dave Carty Jennifer Kross Aaron Fraser Pass E Donnall Thomas Jr Tom Fulgham Michael Furtman Jim Ringelman PhD
Ducks Unlimited Inc. /2006T Single Issue Magazine / 136 Pages
