Woodfield, Brian F. Virtual ChemLab, Problems and assignments for the virtual laboratory 2.5/ General Chemistry, principles & modern applications Brian F. Woodfield et al...., - 9th ed. - Upper Saddle River, New Jersey Pearson Prentice Hall 2007 - vi.176p. ill. 26.5cm ISBN: 9780132210751 LC Class. No.: QD33.2 GEN