000 00380nam a2200169Ia 4500
082 _a503
_bM478.EY
100 _a
_d
245 _aMcGraw-Hill Encyclopedia & Yearbook of Science and Technology
_b
260 _aNew York
_bMcGraw-Hill
_c1978
300 _a
500 _a
690 _a
700 _a
964 _a
_b
_c
_d
_e
_f
_g
965 _aLib. has:- 1978
921 _a13212
999 _c13212
_d13212