Walton, G. (1988). Technical review of the stability and hydrogeology of mineral workings: For the department of the environment. Her Majesty's Stationery Office.
Chicago-Zitierstil (17. Ausg.)Walton, Geoffrey. Technical Review of the Stability and Hydrogeology of Mineral Workings: For the Department of the Environment. London: Her Majesty's Stationery Office, 1988.
MLA-Zitierstil (9. Ausg.)Walton, Geoffrey. Technical Review of the Stability and Hydrogeology of Mineral Workings: For the Department of the Environment. Her Majesty's Stationery Office, 1988.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.