Cite the scanned version of the original dicionary like this:
Bosworth, Joseph. "byt." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth. Ed. Thomas Northcote Toller. Oxford: Clarendon Press, 1898. 142.
.Add: ; bytte, an [?cf. Lat. butta (buttam plenam, Cht. E. 119, 1)] :-- Geworden ic eam swá swá bytte (uter), Ps. L. 118, 83. Ǽren byt lenticula, Wrt. Voc. i. 25, 17. Trýwen byt flasco, ii. 149, 34. Bytte hlid cordias, 135, 80. Líchoma tóbláwen on ánre bytte gelícnysse, Hml. S. 31, 952. On bitte in utre, Ps. Spl. 77, 16. Swilce man siwige áne bytte, Hml. S. 34, 317. Trinnu (= tríwenu?) byttæ flasce, eadem et flascones, Wrt. Voc. ii. 39, 78. In byttum aldum in utres veteres, Mk. L. 2, 22. [Lat. buttis. v. N. E.