Helgeson, Harold C. <br/><br/>
Handbook of theoretical activity diagrms depicting chemical equilibria in geologic systems involving an aqueous phase at one Atm and 0 to 300 C / 
Harold C. Helgeson, Thomas H. Brown, and Robert H. Leeper. 
 - Cooper, San Francisco, Calif. :  Freeman,  1969. 
 - 253 p. :  ill. ;  25 cm. 
<br/><br/>Bibliography: p. 11. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogical chemistry--Charts, diagrams, etc.<br/>Phase diagrams.