Molecular beam ion source for hex analysis with a mass spectrometer /
McKnight, J. A.,author.
Atomic Energy Research Establishment (Harwell, England),issuing body.
Great Britain.Her Majesty's Stationery Office.
"Nov. 18, 1959."
Sold but not published by H.M. Stationery Office.
Declassified version of IGR-R/CA-243.