Title: Ocean manganese nodules
Description: <a href="http://uf.catalog.fcla.edu/uf.jsp?st=UF025741384&ix=pm&I=0&V=D&pm=1" rel="nofollow">http://uf.catalog.fcla.edu/uf.jsp?st=UF025741384&ix=pm&I=0&V=D&pm=1</a>
Subjects: Manganese nodules, Submarine Manganese mines and mining, Manganese nodules.