Cite the scanned version of the original dicionary like this:
Toller, T. Northcote, and Joseph Bosworth. "leác." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth : Supplement. Oxford: Clarendon Press, 1921. 608.
, leáh-tric, es; m. A lettuce :-- Leáhtric lactuca, Wrt. Voc. 67, 47: ii. 50, 51. Lactucas ðæt is leáhtric, L. M. 2, 16; Lchdm. ii. 194, 6: 3, 8; Lchdm. ii. 352, 20. Ðá geseah heó ǽnne leáhtric ðá lyste hí ðæs and hine genam and forgeat ðæt heó hine mid Cristes ródetácne gebletsode then she saw a lettuce and had a longing for it, and took it and forgot to bless it with the sign of the cross, iii. 336, col. 1. Wudu-léctric lactuca silvatica, Herb. 31; Lchdm. i. 128, 6, 8.
, leáh-, léh- tún, es; m. A garden of herbs, a kitchen-garden :-- Leáhtún ortus olerum, Wrt. Voc. 285, 76: ii. 64, 9 Ðér wæs léhtún ubi erat hortus, Jn. Skt. Lind. 18, 1: 19, 41. Nán man on ðysne ðæg wyrte in léhtúne ne fatige, Wulfst. 227, 8: 231, 18. Monn sende in léhtúne his homo misit its hortum suum, Lk. Skt. Lind. 13, 19. [Misc. leyhtun a garden.] Cf. wyrt-tún.