000 00461pam a2200157a 44500
040 _aP K Kelkar Library, IIT Kanpur
082 _a535
_bP611t2
100 _aPierce, John Robinson
245 1 _aTheory and design of electron beams
_cJohn Robinson Pierce
250 _a2nd
260 _aNew York
_bD. Van Nostrand
_c1954
300 _axiv, 222p
440 _aThe Bell Telephone Laboratories Series
_v
650 _aElectron beams
997 _a11333 C
999 _c429822
_d429822