Cita APA (7a ed.)

Blake, W. (1973). William Blake: A selection of poems and letters. Penguin.

Cita Chicago Style (17a ed.)

Blake, William. William Blake: A Selection of Poems and Letters. Harmondsworth [etc.]: Penguin, 1973.

Cita MLA (9a ed.)

Blake, William. William Blake: A Selection of Poems and Letters. Penguin, 1973.