APA (7th ed.) Citation

Perry, A. H. (1981). Environmental hazards in the British Isles. Allen & Unwin.

Chicago Style (17th ed.) Citation

Perry, Allen H. Environmental Hazards in the British Isles. London: Allen & Unwin, 1981.

MLA (9th ed.) Citation

Perry, Allen H. Environmental Hazards in the British Isles. Allen & Unwin, 1981.