http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Stud. teh. econ. - Inst. geol. geofiz., Ser. B Chim
Etudes techniques et economiques. <-1970>
Description based on: Nr. 45, published in 1970.
Issued by Institutul Geologic, <1970>-74; and, Institutul de Geologie si Geofizica, 1975-
Studii tehnice sieconomice. Seria B, Prepararea minereurilor