TY  - BOOK
AU  - Bradley,Walter Wadsworth
TI  - Magnesite in California,
T2  - California. State mining bureau. Bulletin
AV  - TN948.M2 B8
PY  - 1925///
CY  - Sacramento
PB  - California state printing office
KW  - Magnesite
N1  - Bibliographical references
ER  -