Leak detection in water mains using radioisotopes /
Jefferson, S.,author.
Cameron, J. F.,author
Wildblood, A. M.,author.
Putman, J. L.,author.
Atomic Energy Research Establishment (Harwell, England),issuing body.
Great Britain.Her Majesty's Stationery Office.
"Jan., 1956".
Sold but not published by H.M. Stationery Office.