Two offices of the Bureau were selected for training for 5th term of the International Science and Economic Council, Calcutta. File No. Plan-4B -2/53 - 1953 - 17 p; H-35 cm; W-22 cm

সচিবালয় রেকর্ডরুম সংগ্রহ (প্রথম পর্যায়)




Science --Economic