TY  - BOOK
AU  - Sinkankas,John
TI  - Gemstones of North America
SN  - 0-442-07613-4(v.1)
PY  - 1959///, 1976
CY  - New York
PB  - Van Nostrand Reinold Company
KW  - Gemstones
N1  - Includes Bibliography and Index; vol. 1 ( 1959, 674 p.); vol. 2 ( 1976, 494 p.)
ER  -