Hem, John D. . <br/><br/>
Study and Interpretation of the Chemical Characteristics of Natural Water /  Textual Documents 
John D. Hem. 
 - 3rd ed. / 
 - Jodhpur :  Scientific Publishers ,  1991. 
 - xii,263p. :  ill ;  27cm . 
<br/><br/>Index 
<br/><br/><label>Subjects--Index Terms: </label>Geology Natural Water G-Geology 
<br/><br/><label>Dewey Class. No.: </label>551.48  / He 37 St