gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1984.048.349.29 Book Reviews Assessment of Manganese Nodules Resources: The Data and the Methodologies Cronan D. 12 1984 48 349 590 590 Assessment of Manganese Nodules Resources: the Data and the Methodologies London Graham and Trotman Ltd. 1982 United Nations: Ocean Economics and Technology Branch. 7 figs., 4 maps. Price £12 Copyright © 1984, The Mineralogical Society 1984