OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Charlie B : a biography of Admiral Lord Beresford of Metemmeh and Curraghmore, G.C.B.,G.C.V.O.,LL.D.,D.C.L by Geoffrey Bennett. Published by Dawnay in 1968. Publication and catalogue information, links to buy online and reader comments.