Papers concerning the palaeontology of California, Arizona, and Idaho. 

 - Washington :  Carnegie Institution,  1934. 
 - 135 p. :  il. ;  26 cm 
 - Publication  440 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleontología
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Arizona<br/>California<br/>Idaho
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>56(7)