*Bentley 27.P6.1821 BOOKKEEPING. Preston, L., Preston's Treatise on book~keepin;.(cont.5
Same. 1852. 224, 40, 8p. £5 1/2 cm., in 4s. *Bentley 37.P6.1852 Contains his The book-keeper's diploma, 7 of the last 8 pages are advertisements.
Same. 44th ed. revised... 1857. 280 p. *Bentley 37.P6.1857 Included in the paging and without a separate title page is his Book-keeper's diploma.
Same. New [46th] stereotyped edition, re- vised, improved...1860. - 230 p. *Bentley 37.P6.1860