United Nations list of national parks and equivalent reserves / 
Prepared and published by IUCN ; international Commission on National Parks pursuant to United Nations Economic and Social Council Resolution 810 (XXXI). (List established by Jean-Paul Harroy ; closing date: 31 May 1967). 
 - 2nd ed. 
 - Brussels :  Publishers Hayez,  1971. 
<br/><br/> "Addendum-corrigendum to the second edition of the United Nations list of national parks and equivalent reserves, including data received to 30 June 1972" (107 p.) published separately in 1972. 
<br/><br/><label>ISBN: </label> 950F 
<br/><br/><label>LCCN: </label>72186054 //r84 
<br/><br/><label>Nat. Bib. No.: </label>Be72-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>National parks and reserves.
<br/><br/><label>LC Class. No.: </label>SB481  / .I55 1971 
<br/><br/><label>Dewey Class. No.: </label>333.9/5