1.
Qualitative Valence Dond Descriptions of Electron Rich Molecules
by Harcourt, R. D.
ISBN: 9783540115557
List Price: $99.00
2.
Qualitative Valence-Bond Descriptions of Electron-Rich Molecules : Pauling 3-Electron Bonds ...
by D Harcourt, R.
ISBN: 9783642932175
List Price: $24.99