roger bacon,dwaynebacon

1266年, 罗杰·培根(roger bacon,1220—1292)在《大著作》一书中记载
【中商海外直订】the opus majus of roger bacon, v2
the letter of roger bacon concerning the marvelous power of art
【预售】die physik roger bacons: 13 jahrh. (1906)
【中商海外直订】the opus majus of roger bacon, v1