00626cam a22002411 4500 sa 67002971 DLC 20260227112334.0 770323s1966 xx 000 0 eng sa 67002971 (OCoLC)2829055 DLC TxU-L OCoLC DLC premarc TP243 .P3 1966 Pakistan. Department of Explosives. Gas cylinder rules, 1940. 3d ed. Karachi, Manager of Publications, 1966. 13 p. illus. 25 cm. Cover title. Gases. Cylinders. 73564 73564