Cite the scanned version of the original dicionary like this:
Bosworth, Joseph. "eald-líc." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth. Ed. Thomas Northcote Toller. Oxford: Clarendon Press, 1898. 228.
.Add:I.proper for mature years, of the character that should belong to age :-- Cildlic on geárum and ealdlic on móde. Hml. S. 7, 9. Sé of þǽre tíde his cnihthádes wæs berende ealdlice heortan (cor gerens senile), Gr. D. 95, 1. Biscopum gebirað ealdlice wísan, Ll. Th. ii. 318, 29. II.belonging to early times, original, authentic (?) :-- Mid ealdlecre (printed -letre, but for -lec = -lic v.ll. l, 12 on same page) autentica veterum (the passage glossed is: Authentica veterum auctoritate, Ald. 35, 26. Cf. An.