00350nam a2200157Ia 4500008004100000020000900041035001000050082002200060100003900082245002900121250000600150260001600156300000800172500000600180650000600186210723s9999||||xx |||||||||||||| ||und||  aNULL  a23177  a541.22BBAL / GRA  aBallhausen, C. J. / Gray, Harry B. 0aMolecular Orbital Theory  a-  aNew Yorkb-  a273  a0  a-