Description
Published:Vol. 22, no. 4 (Oct. 15, 1954)-v. 39, no. 24 (Dec. 20, 1964)
Physical Description:18 v. 27 cm.
Publication Frequency:Semimonthly
ISSN:0041-7696
0096-8897
Related Items:June 1962-Sept 1963 indexed by: Keywords index to U.S. government technical reports (permuted title index)