LEADER 00745cam a22002415i 4500001    9920348663506421
005    20230125135312.0
008    780711s1978    xx            000 0 eng d
035     |9CHQ2848TS
035    (NjP)2034866-princetondb
035    (OCoLC)ocm04042028
035     |z(NjP)Voyager2034866
040    PUL |cPUL |dOCL |dPUL
100 1  Barr, Stephen M.
245 10 Natural approximate lepton symmetries / |cStephen M. Barr.
260     |c1978.
300    ii, 94 leaves : |bill. ; |c28 cm.
500    Advisor(s): Anthony Zee.
502    Thesis (Ph. D.)--Princeton.
504    Bibliography: leaf 12.
911    19981222
914    (OCoLC)ocm04042028 |bOCoLC |cmatch |d20230125 |eprocessed |f4042028
945    SM |b1 |cPRIN 685 1978 .147