Cite the scanned version of the original dicionary like this:
Toller, T. Northcote, and Joseph Bosworth. "mann-weorþ." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth : Supplement. Oxford: Clarendon Press, 1921. 632.
, es; n. The value or price of a man :-- Gif mannes esne eorlcundne mannan ofslæhþ ... se ágend ágefe ðone banan, and dó ðǽr þrió manwyrþ tó. Gif se bana óþbyrste feórþe manwyrþ hé tó gedó, L. H. E. 1-2; Th. i. 26, 8-28, 1: 3-4; Th. i. 28, 4-8.