#1 John E. Gilbert - Clifford Algebras and Dirac Operators in Harmonic Analysis
#2 John R. Gilbert - A Vida de um Cavaleiro no Tempo das Cruzadas bw42 combined
+ A Vida de um Cavaleiro no Tempo das Cruzadas by J Gilbert
+ Knights of the Crusades (Macdonald living history) by John Gilbert (see work (editions)) If you know the work has moved off of this page, why include it here?
#3 Jeff Gilbert - Beer Fear
#4 John Gilbert - Progress in food contaminant analysis