Determination of silicon in beryllium compounds : fluoride, hydroxide and ammonium fluorberyllate /
Boswell, E.,author.
Heathfield, K.E.,author.
Atomic Energy Research Establishment (Harwell, England),issuing body.
Great Britain.Her Majesty's Stationery Office.
"July, 1959."
Sold but not published by H.M. Stationery Office.