APA (7th ed.) Citation

O'Brien, T. H. (1955). Civil defence. H. M. Stationery Off.

Chicago Style (17th ed.) Citation

O'Brien, Terence H. Civil Defence. London: H. M. Stationery Off, 1955.

MLA (8th ed.) Citation

O'Brien, Terence H. Civil Defence. H. M. Stationery Off, 1955.