Macgregor, M., & MacGregor, A. G. (1936). British regional geology: The Midland valley of Scotland. H.M. Stationery Off.
Chicago Style (17th ed.) CitationMacgregor, Murray, and Archibald Gordon MacGregor. British Regional Geology: The Midland Valley of Scotland. Edinburgh: H.M. Stationery Off, 1936.
MLA (9th ed.) CitationMacgregor, Murray, and Archibald Gordon MacGregor. British Regional Geology: The Midland Valley of Scotland. H.M. Stationery Off, 1936.
Warning: These citations may not always be 100% accurate.