TY  - GEN
AU  - Gait,Robert I.
TI  - Exploring minerals & crystals
SN  - 0770003451 :
U1  - 549 
PY  - 1972///
CY  - Toronto
PB  - Mcgraw-Hill Ryerson
KW  - Mineralogy
KW  - Crystals
N1  - Includes bibliographical references and index
ER  -