Paul Cockshott/ Lewis M. Mackenzie/ Gregory Michaelson
(2)
Allin F. Cottrell/ Paul Cockshott/ Gregory John Michaelson/ Ian P. Wright/ Victor Yakovenko
(1)
W. Paul Cockshott/ Allin F. Cottrell/ Gregory John Michaelson/ Ian P. Wright/ Victor M. Yakovenko
(1)