Description
Item Description:"Reprint from: Land and Water International, February 1972, no. 13."
"May 1972."
"Series 4: Hydrometric instruments and measuring methods, Group 43: Determination of discharges, Section 43.46: Discharge measurement by radio-active material and other tracers."
Physical Description:6 leaves : illustrations ; 30 cm.
Bibliography:Includes bibliographical references (leaf 6).