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APA ZitierstilRalston, I. (2019). The hillforts of Britain and Ireland - the background to the Atlas Project: An overview of the number of hill- and promontory-fort sites. Oxford: Archaeopress Publishing Ltd..
Chicago ZitierstilRalston, Ian. The Hillforts of Britain and Ireland - the Background to the Atlas Project: An Overview of the Number of Hill- and Promontory-fort Sites. Oxford: Archaeopress Publishing Ltd., 2019.
MLA ZitierstilRalston, Ian. The Hillforts of Britain and Ireland - the Background to the Atlas Project: An Overview of the Number of Hill- and Promontory-fort Sites. Oxford: Archaeopress Publishing Ltd., 2019.