Introductory chemistry essentials

 Tro, Nivaldo J.;

Boston : Pearson Education , 2015

Introductory chemistry essentials

 Tro, Nivaldo J.;

Harlow : Pearson Education , 2015

Principles of Chemistry : a Molecular Approach.

 Tro, Nivaldo J;

Harlow : Pearson/Merrill Prentice Hall , 2017