William J. Duiker/ Jackson J. Spielvogel
(29)
Jackson Spielvogel (The Pennsylvania State University),William Duiker (The Pennsylvania State University)
(3)
Jackson Spielvogel (The Pennsylvania State University)
(2)
Jackson J. Spielvogel Ph.D.
(1)
Jackson J. Spielvogel/ James T. Baker (CON)
(1)
Jackson J. Spielvogel/ Karin Otterbach Jimeno (TRN)
(1)
Jackson J. Spielvogel/ W. Lindsay Adams Ph.D. (CON)/ Frank De Varona (CON)/ Anthony Florek Ph.D. (CON)/ richard Golden (CON)/ Jonathan Grant (CON)/ Robet E. Herzstein Ph.D. (CON)/ Hitchens
(1)