Roberts, I. (2010). Understanding the cropmark landscapes of the magnesian limestone: The archaeology of the magnesian limestone and its margins in South and West Yorkshire and parts of North Yorkshire and North Nottinghamshire. Archaeological Services WYAS.
Chicago-Zitierstil (17. Ausg.)Roberts, Ian. Understanding the Cropmark Landscapes of the Magnesian Limestone: The Archaeology of the Magnesian Limestone and Its Margins in South and West Yorkshire and Parts of North Yorkshire and North Nottinghamshire. Morley: Archaeological Services WYAS, 2010.
MLA-Zitierstil (9. Ausg.)Roberts, Ian. Understanding the Cropmark Landscapes of the Magnesian Limestone: The Archaeology of the Magnesian Limestone and Its Margins in South and West Yorkshire and Parts of North Yorkshire and North Nottinghamshire. Archaeological Services WYAS, 2010.