Here are the titles:
 
BEEKEEPING AT BUCKFAST ABBEY, by Brother Adam, c. 1975 (4th ed. 1987)
 
IN SEARCH OF THE BEST STRAINS OF BEES, by Brother Adam, c. 1986
 
FOR THE LOVE OF BEES: THE STORY OF BROTHER ADAM OF BUCKFAST ABBEY, by
               Lesley Bill,  c.  1989
 
Sorry but I don't have the publishers. A librarian can do a library-network
search if you wish to find them.