Approach to critical experiments with slightly enriched uraniumin natural water /
Crocker, V. S.,author.
Davey, W. G.,author.
Smith, K. R. E.,author.
Atomic Energy Research Establishment (Harwell, England),issuing body.
Great Britain.Her Majesty's Stationery Office.
"July, 1957."
Sold but not published by H.M. Stationery Office.