APA (7th ed.) Citation

Folio Society (London, England), & Barker, N. (1987). Folio 40: A checklist of the publications of the Folio Society, 1947-1987. Folio Press.

Chicago Style (17th ed.) Citation

Folio Society (London, England), and Nicolas Barker. Folio 40: A Checklist of the Publications of the Folio Society, 1947-1987. London: Folio Press, 1987.

MLA (9th ed.) Citation

Folio Society (London, England), and Nicolas Barker. Folio 40: A Checklist of the Publications of the Folio Society, 1947-1987. Folio Press, 1987.