APA (7th ed.) Citation

Welfare, H., & Swan, V. G. (1995). Roman camps in England : the field archaeology / Humphrey Welfare and Vivien Swan: The field archaeology. H.M.S.O..

Chicago Style (17th ed.) Citation

Welfare, Humphrey, and Vivien G. Swan. Roman Camps in England : The Field Archaeology / Humphrey Welfare and Vivien Swan: The Field Archaeology. London: H.M.S.O., 1995.

MLA (9th ed.) Citation

Welfare, Humphrey, and Vivien G. Swan. Roman Camps in England : The Field Archaeology / Humphrey Welfare and Vivien Swan: The Field Archaeology. H.M.S.O., 1995.

Warning: These citations may not always be 100% accurate.