David A. Baer (EDT)/ Robert P. Gordon (EDT)
(2)
Robert Gordon (EDT)/ Andrew P. Lyons (EDT)/ Harriet D. Lyons (EDT)
(2)
Robert P. (University of Maryland Kolker USA),Marsha (North Carolina State University Gordon USA)
(2)
A. Gordon Emslie (EDT)/ Brian R. Dennis (EDT)/ Robert P. Lin (EDT)/ Hugh S. Hudson (EDT)
(1)
Gordon E. Barnes,Robert P. Murray,David Patton,Peter M. Bentler,Robert E. Anderson
(1)
Kevin J. Cathcart (TRN)/ Robert P. Gordon (TRN)
(1)
R. Gordon Wasson/ Albert Hofmann (COL)/ Carla P. Ruck/ Huston Smith (INT)/ Robert Forte (EDT)
(1)
Robert P. Gordon/ P. B. Dirksen
(1)
Robert P. Gordon/ R. N. Whybray (EDT)
(1)
Robert P. Gordon;Kiraz, George A.
(1)