Flavio G. Conti/ Alan R. Perry
(3)
Janet M. Box-Steffensmeier/ John R. Freeman/ Jon C. W. Pevehouse/ Matthew Perry Hitt
(2)
Perry L. Glanzer/ Jonathan P. Hill/ Byron R. Johnson
(2)
Perry R. (Warwick University Hinton UK)
(2)
Perry R. (Warwick University Hinton UK),Isabella (University of Bedfordshire McMurray UK),Charlotte (University of Southern Queensland Brownlow Australia),Peter C. Terry
(2)
Perry R. Hinton/ Isabella McMurray
(2)
Perry R. Rettig,Toni Bailey
(2)
Perry R. Rettig,Toni M. Bailey
(2)