S. 2257, the National Park Service Centennial Act :  hearing before the Committee on Energy and Natural Resources, United States Senate, One Hundred Fourteenth Congress, first session, December 8, 2015. 

 - S. hrg. ;  114-492 .
 - United States.  Congress.  Senate.  S. hrg. ;  114-492. .
<br/><br/> Paper version available for sale by the Superintendent of Documents, U.S. Government Publishing Office.  CRDP Program record. 
<br/><br/><label>Subjects--Corporate Names: </label><br/>United States. National Park Service Centennial Act. <br/>United States. National Park Service --Centennial celebrations, etc.
<br/><br/><label>Subjects--Topical Terms: </label><br/>National parks and reserves--Law and legislation--United States.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Legislative hearings.
<br/><br/><label>LC Class. No.: </label>KF26  / .E55 2015 
<br/><br/><label>GPO Item No.: </label>1040-C (MF) 
<br/><br/><label>Gov. Doc. Class. No.: </label>Y 4.EN 2:S.HRG.114-492