software or book for equivalent of transistor, triac etc

Hi friends.... i need a software or any book to find the equivalent or substitute of

 

NTE is a company that specializes in cross referenced parts. You can get a catalog from them.

 

You don't even need a book; you can use their search engine
http://www.nteinc.com

Beware though; the search engine only goes one way (from other part numbers to NTE parts) and NTE parts are usually at least several times as expensive as the original item.