Roger Beutel/ Lauren Spencer
(2)
Gary Spencer Millidge,David Crane,Roger Langridge
(1)
Melanie Phillips/ Thomas Sowell/ Roger Kimball/ Victor Davis Hanson/ Roy W Spencer
(1)
Roger W. Spencer, David A. Macpherson
(1)
Spencer, Roger W. (Trinity University),Macpherson, David A. (Trinity University)
(1)