Hempel, Walter Mathias,  1864-, <br/><br/>
Methods of gas analysis / 
By Walter hempel ; translated from the 3rd. German ed. and considerably enlarged by l. m. dennis 
 - xix, 490 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gases--Análisis
<br/><br/><label>LC Class. No.: </label>QD121  / H4513