APA (7th ed.) Citation

Powys, A. R. (1981). Repair of ancient buildings (New ed.). S.P.A.B..

Chicago Style (17th ed.) Citation

Powys, A. R. Repair of Ancient Buildings. New ed. London: S.P.A.B., 1981.

MLA (9th ed.) Citation

Powys, A. R. Repair of Ancient Buildings. New ed. S.P.A.B., 1981.