APA (7th ed.) Citation

Elliman, M., & Roll, F. (1986). The pink plaque guide to London. London: GMP.

Chicago Style (17th ed.) Citation

Elliman, Michael, and Frederick Roll. The Pink Plaque Guide to London. London: GMP, 1986.

MLA (8th ed.) Citation

Elliman, Michael, and Frederick Roll. The Pink Plaque Guide to London. London: GMP, 1986.