British Geological Survey, National Environment Research Council, & Berridge, N. G. (1999). Geology of the Grantham district : memoir for 1:50 000 Geological Sheet 127 (England and Wales) / N.G. Berridge... [et al.]: Memoir for 1:50 000 Geological Sheet 127 (England and Wales). The Stationery Office.
Chicago Style (17th ed.) CitationBritish Geological Survey, National Environment Research Council, and N. G. Berridge. Geology of the Grantham District : Memoir for 1:50 000 Geological Sheet 127 (England and Wales) / N.G. Berridge... [et Al.]: Memoir for 1:50 000 Geological Sheet 127 (England and Wales). London: The Stationery Office, 1999.
MLA (9th ed.) CitationBritish Geological Survey, et al. Geology of the Grantham District : Memoir for 1:50 000 Geological Sheet 127 (England and Wales) / N.G. Berridge... [et Al.]: Memoir for 1:50 000 Geological Sheet 127 (England and Wales). The Stationery Office, 1999.