Specification  the abbreviation of titles of periodicals. 

 - London  British Standard Institution  1975. 
 - 2v. ; 32 cm. 
<br/><br/> BS 4148 : part 2 : 1975 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Periodicals--Abbreviations of titles<br/>Abbreviations--Standards