TY  - GEN
ED  - Government of East Bengal,
TI  - Testing of explosives by the officers in charge of the custom house laboratories & the central Revenues Laboratories.  
PY  - 1940///
KW  - Testing of explosives
N1  -  সচিবালয় রেকর্ডরুম সংগ্রহ (প্রথম পর্যায়) 


ER  -