The NSS bulletin :  1987 : quarterly journal of the National Speleological Society. 
 National Speleological Society bulletin  N.S.S. bulletin 

 -  The Society. 
 - v. :  ill. ;  28 cm. 
 - Semiannual,  1984-1995 
 - Quarterly,  1974-1983 
 - Vol. 36, no. 1-v. 57, no. 2 (Dec. 1995). 
<br/><br/> Title from cover. 
<br/><br/> Chemical abstracts  0009-2258 
<br/><br/><label>ISSN: </label>0146-9517 
 = The NSS bulletin 
 = NSS bull. 
<br/><br/><label>CODEN: </label>NSSBDR 
<br/><br/><label>LCCN: </label>82643983  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Caves--Periodicals.<br/>Caving--Periodicals.
<br/><br/><label>Subjects--Index Terms: </label>სპელეოლოგია პერიოდიკა 
<br/><br/><label>LC Class. No.: </label>GB601  / .A14 
<br/><br/><label>Dewey Class. No.: </label>551.4/47/05 
<br/><br/><label>Universal Decimal Class. No.: </label>551.44(05)