TY  - BOOK
AU  - Sinkankas,John
TI  - Gemstones of North America
SN  - 0442276273
PY  - 1959///
CY  - New York
PB  - Van Nostrand Reinhold Company
KW  - Precious stones
KW  - North America
N1  - Vol. 2 has imprint: New York, Van Nostrand Reinhold; Bibliography: v. 1, p. 607-619; v. 2, p. 374-462
ER  -