Acidic books in libraries. How to count them?

Bibliographic Details
Main Authors:	Barański, Andrzej (Author), Frankowicz, Krzysztof, 1970- (Author), Harnicki, Zbigniew (Author), Koziński, Zbigniew (Author), Łojewski, Tomasz (Author)
Format:	Article
Language:	English Slovak
Online Access:	http://www.viks.sk/chk/acidic.doc

Internet

http://www.viks.sk/chk/acidic.doc