000 00293pam a2200121a 44500
082 _a778.4
_bD865s
100 _aDudley, Leslie P.
245 _aStereoptics
_cLeslie P. Dudley
260 _aLondon
_bMacdonald & Co.
_c1951
300 _axii, 112p.
650 _aStereoptics
997 _a3353 C
999 _c449461
_d449461