Walton, G. (1988). Handbook on the hydrogeology and stability of excavated slopes in quarries: For the Department of the Environment (2. impr.). Her Majesty's Stationery Office.
Chicago-Zitierstil (17. Ausg.)Walton, Geoffrey. Handbook on the Hydrogeology and Stability of Excavated Slopes in Quarries: For the Department of the Environment. 2. impr. London: Her Majesty's Stationery Office, 1988.
MLA-Zitierstil (9. Ausg.)Walton, Geoffrey. Handbook on the Hydrogeology and Stability of Excavated Slopes in Quarries: For the Department of the Environment. 2. impr. Her Majesty's Stationery Office, 1988.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.