Hay, Richard L. <br/><br/>
Stratigraphy and zeolitic diagenesis of the John Day Formation of Oregon / 
by Richard L. Hay. 
 - Berkeley ;  Los Angeles :  University of California Press,  1963. 
 - 261 p. 
 - University of California publications in geological sciences  Vol. 42, No. 5 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology