Daniel M. Knight/ Robert Layton (FRW)
(2)
Ivan March/ Edward Greenfield/ Robert Layton/ Paul Czajkowski
(1)
Peter J. Ucko (EDT)/ Robert Layton (EDT)
(1)
Peter J. Ucko (EDT)/ Robert Layton (EDT)/ India) World Archaeological Congress 1994 (New Delhi
(1)
Robert Halvorsen/ David Layton
(1)
Robert Layton (EDT)/ Peter G. Stone (EDT)/ Julian Thomas (EDT)
(1)
Robert Layton (EDT)/ Stephen Shennan (EDT)/ Peter Stone (EDT)
(1)
Robert Layton/ Paul A. Watters
(1)