Cartmell,E.
BB1501 BB1257
Valency and molecular structure. . — 4th ed. . — London : English language book society & Butterworths, 1977.
341p. ill.diagrs. 23cm.
2.45Sterlings C1-Rs.48.27 By Cartmell,E. & Fowles, G.W.A. Subjects--Index Terms: Chemistry