Symposium sobre Yacimientos de Manganeso
Subtitle: XXCongreso Geolo gico Internacional
By: editado por Jenaro Gonza lez Reyna. Tomo 1, El Manganeso en general.
Contributors: Gonzalez Reyna, Jenaro.; International Geological Congress, (20th : 1956 : Mexico City)
Publisher: [congreso Geolo gico Internacional]
Published: 1956
Place of publication: Me xico
Language: eng
Number of pages: 154
Subjects: Manganese mines and mining.; Manganese ores -- Geology.
Notes: Text in English, German, Spanish and French.