TY  - JOUR
CN  - I 28.122:
CN  - HD9585.P8
CY  - Washington, D.C. :
ID  - 148534
KW  - Pumice industry
N1  - Some issues have title: Pumice and pumicite.
N1  - Description based on: 1982 prelim.; title from caption.
PB  - The Bureau,
PP  - Washington, D.C. :
T1  - Pumice and pumicite in ... /
TI  - Pumice and pumicite in ... /
ER  -