To Summer, R H Shepherd ed., 1868. Poetical sketches by William Blake now first reprinted from the original edition of 1783, London: Basil Montagu Pickering
To Summer in Life of William Blake (1880), Volume 2 (selections) Poetical Sketches, p, 12
To Summer, W M Rossetti, ed., 1890. The poetical works of William Blake, lyrical and miscellaneous. Aldine edition. London: George Bell & sons.
To Summer, J Sampson, ed., (variorum reading, notes and preface), 1905 The poetical works of William Blake; a new and verbatim text from the manuscript engraved and letterpress originals, Oxford. 'Poems from the Poetical Sketches' p. 5.