TY  - BOOK
AU  - Anderson,B.W.(Basil William)
TI  - Gem testing
SN  - 0408701277
PY  - 1971///
CY  - London
PB  - Butterworth
KW  - Precious stones
N1  - First pub. in 1942 under title: Gem testing for jewellers; Includes bibliographical references
ER  -