An introduction to seismology, earthquakes, and earth structure
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A Text book of geology
Rao Sanjeeva, P.C.
Mineral resources and development
/ editors, G.S. Roonwal, K. Shahriar, and H. Ranjbar
Treatise on invertebrate paleontology
/ Directed and edited by Raymond C. Moore
Encyclopedia of Rocks, Minerals, and Gemstones
Russell, Henry]