Authors: Laban, N. R.
Source: Chemical Age; September 3 1938, Vol. 39, psup15-sup17, 3p
Source: Brass World; October 1930, Vol. 26, p261-263, 3p
Source: Brass World; September 1931, Vol. 27, p199-200, 2p
Source: Chemical Age; September 6 1930, Vol. 23, psup14-sup15, 2p
Source: Chemical Age; September 3 1938, Vol. 39, psupl5-17
Source: Engineer (00137758); November 28 1930, Vol. 150, p172