1. Mero JL (1965) The mineral resources of the sea. Elsevier, London, 312pp
2. Mero JL (1959) The mining and processing of deep-sea Manganese nodules. Institute of Marine Resources, University of California, Berkeley, 96pp
3. Tooms JS (1967, November) Marine minerals in perspective. Hydrospace
4. Dunham KC (1969) Geology and the natural environment of man II: seas and oceans. Q J Geol Soc Lond 124:101–129
5. Hornig DG (1966) Effective use of the sea. Report of the panel on oceanography (President’s Science Advisory Committee). US Govt Printing Office