TY - BOOK AU - अग्रवाल, उमेश चंद्र Agrawal, Umesh Chandra TI - सहसंयोजक बंध SAHSANYOJAK BANDH U1 - 541.224 PY - 1974/// CY - Lucknow PB - Uttar Pradesh Hindi Granth Akadami KW - Chemical Bonds KW - Valence (Theoretical Chemistry) ER -