TY - BOOK AU - Cartmell,E. AU - Fowless,G.W.A. TI - Valence and Molecular Structure SN - 0408709227 U1 - 541.224 PY - 1977/// CY - London PB - English Language Book Society KW - Chemistry and Allied Science KW - Physical Chemistry KW - Molecular bonds and valences KW - রসায়ন ER -