APA (7th ed.) Citation

Williams, G. G., Williams, M., & Williams, G. (1988). Guide to literary London (1. paperback ed.). Batsford.

Chicago Style (17th ed.) Citation

Williams, George G., Marian Williams, and Geoffrey Williams. Guide to Literary London. 1. paperback ed. London: Batsford, 1988.

MLA (9th ed.) Citation

Williams, George G., et al. Guide to Literary London. 1. paperback ed. Batsford, 1988.