APA (7th ed.) Citation

Shepherd, J. D., Grimes, W. F., & Allen, P. (2012). The discovery of the Roman fort at Cripplegate, City of London. Museum of London Archaeology.

Chicago Style (17th ed.) Citation

Shepherd, J. D., W. F. Grimes, and Patrick Allen. The Discovery of the Roman Fort at Cripplegate, City of London. London: Museum of London Archaeology, 2012.

MLA (9th ed.) Citation

Shepherd, J. D., et al. The Discovery of the Roman Fort at Cripplegate, City of London. Museum of London Archaeology, 2012.