Barrow, G. (1919). The Geology of the country around Lichfield: Including the northern parts of the South Staffordshire and Warwickshire coalfields. E. Stanford, Ltd.
Παραπομπή σε μορφή Chicago (17η εκδ.)Barrow, George. The Geology of the Country Around Lichfield: Including the Northern Parts of the South Staffordshire and Warwickshire Coalfields. London: E. Stanford, Ltd, 1919.
Παραπομπή σε μορφή MLA (8th εκδ.)Barrow, George. The Geology of the Country Around Lichfield: Including the Northern Parts of the South Staffordshire and Warwickshire Coalfields. E. Stanford, Ltd, 1919.
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