TY  - BOOK
AU  - Interregional Seminar on the Manufacture and Utilization of Portland Cement
ED  - Interregional Seminar on the Manufacture and Utilization of Portland Cement
TI  - Report
U1  - "X9(D35)p1,N72, L2" 
PY  - 1972///
CY  - New
PB  - York United Nations U. S. A.  
KW  - Cement Industry
N1  - "United Nations Industrial Development Organization, publication"
ER  -