Cite the scanned version of the original dicionary like this:
Toller, T. Northcote, and Joseph Bosworth. "ǽle-puta." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth : Supplement. Oxford: Clarendon Press, 1921. 15.
, an; m. An EEL-POUT; capito :-- Hwilce fixas geféhst ðú? mynas and ǽleputan what fishes catchest thou? minnows and eel-pouts, Coll. Monast. Th. 23, 33. [Plat. aalput or putte: Dut. aalpuit or puit aal, m. a young eel, eel-pout] v. myne.