Cite the scanned version of the original dicionary like this:
Bosworth, Joseph. "hæcewol." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth. Ed. Thomas Northcote Toller. Oxford: Clarendon Press, 1898. 498.
.l. cæce-pol a catch-pole, tax-gatherer :-- Kæcepol (printed . æcewol, but see Angl. viii. 449) exactor, Wrt. Voc. i. 18, 44. [Matheus wes cachepol, O. E. Hml. i. 97, 30.]