Robert E. Stevens (EDT)/ Bruce Wrenn/ Philip K. Sherwood/ Morris E. Ruddick
(2)
Robert E. Stevens (EDT)/ Philip K. Sherwood/ J. Paul Dunn/ David L. Loudon
(2)
Bruce Wrenn/ Robert E. Stevens/ David L. Loudon
(1)
Deborah A. Yow (EDT)/ R. Henry Migliore/ William W. Bowden/ Robert E. Stevens/ David L. Loudon/ Deborah A. Yow
(1)
Kenneth E. Clow/ Robert E. Stevens
(1)
L. S. Vygotsky/ Jane E. Knox/ Carol B. Stevens (TRN)/ Robert W. Rieber/ Aaron S. Carton
(1)
Lawrence Silver/ Robert E. Stevens/ Kenneth E. Clow
(1)
Robert E (Southeastern Oklahoma State University Stevens USA),David L Loudon,R Henry Migliore,Stanley G (University of Louisiana Monroe Williamson USA)
(1)
Robert E. Marx/ Mark R. Stevens
(1)
Robert E. Stevens (EDT)/ David L. Loudon/ Bruce Wrenn/ Henry Cole
(1)
Robert E. Stevens (EDT)/ David L. Loudon/ Bruce Wrenn/ Phylis Mansfield
(1)
Robert E. Stevens,David L. Loudon,Ronald A. Nykiel
(1)
Robert E. Stevens/ Bruce Wrenn/ Lawrence Silver/ David Loudon
(1)
Robert J. Stevens/ Catherine E. Stevens
(1)