APA (7th ed.) Citation

British Library, Wharton, G., & Sheppard, S. (1647). Mercurius Elencticus (1647). [publisher not identified].

Chicago Style (17th ed.) Citation

British Library, George Wharton, and S. Sheppard. Mercurius Elencticus (1647). [London]: [publisher not identified], 1647.

MLA (9th ed.) Citation

British Library, et al. Mercurius Elencticus (1647). [publisher not identified], 1647.