TY  - BOOK
TI  - International Rubber Digest(IRSG)
PB  - IRSG
N1  - Ending Volume & Year: 53, 1999; Missing Volume: 21-23;25-27;33;40;49(5,6,8-11);50(7-9);52(2);53(1,8,10); Starting Volume & Year: 20, 1967
ER  -