TY - BOOK ID - 139131087 TI - The Geology of the Postmasburg Manganese Deposits and the surrounding Country, with An explanation of the Geological Map. AU - Nel, L.T. AU - Parrott, A.K. PY - 1929 PB - Pretoria s.n. DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:139131087 AB - ER -