APA (7th ed.) Citation

Alexander, M. (1970). The earliest English poems (1st ed., reprinted.). Penguin Books.

Chicago Style (17th ed.) Citation

Alexander, Michael. The Earliest English Poems. 1st ed., reprinted. Middlesex (Inglaterra) [etc.]: Penguin Books, 1970.

MLA (9th ed.) Citation

Alexander, Michael. The Earliest English Poems. 1st ed., reprinted. Penguin Books, 1970.