Παραπομπή APA

Blake, W., & Butter, P. H. (1982). William Blake: Selected poems.

Παραπομπή Chicago Style

Blake, William, και P H. Butter. William Blake: Selected Poems. London, Everyman's library, 1982.

Παραπομπή MLA

Blake, William, και P H. Butter. William Blake: Selected Poems. 1982.