000 00232 a2200109 4500
082 _a371.3
_bB777d
245 1 _aDISCOVERY AND EXPERIENCE
260 _aLondon
_bB. B. C.
_c1967
300 _a31
964 _gCIRC
997 _a39100 C
999 _c454617
_d454617