Cite the scanned version of the original dicionary like this:
Toller, T. Northcote, and Joseph Bosworth. "ríclíce." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth : Supplement. Oxford: Clarendon Press, 1921. 686.
;adv.I.powerfully, with power, as one possessing power :-- Gé budon swíðe ríclíce and swíðe ágendlíce vos cum austeritate imperabatis eis et cum potentia, Past. 19, 2; Swt. 145, 5. On ðám dagum ríxode Æþelbyrht on Cantwarebyrig ríclíce, and his ríce wæs ástreht fram ðære micclan eá Humbre óð súðsǽ, Homl. Th. ii. 128, 18. Ríclíce ł stranglíce ł ríclícost potentissime, Ps. Lamb. 44, 4. II.splendidly, sumptuously :-- Sum welig man dæghwamlíce ríclíce (splendide) gewistfullude, Lk. Skt. 16, 19. [O. H.