Dear Friends, Greetings for the day........... I shall be obliged if anyone can arrange the following chapters in pdf format and send me at cee.dev.28@gmail.com: “INFORMATION SOURCES, SERVICES AND SYSTEMS” by GURDEV SINGH - 2013 - Chapter 1: Information Sources Chapter 13: Non-Documentary Sources of Information Chapter 14: Electronic/Digital Information Sources (E-Source). Thanks and Regards, Ms. Charu Dev.. http://openlink-charu.blogspot.com/ http://charu-virtualworld.blogspot.com/ http://charu-libraryworld.blogspot.com/ http://charu-openair.blogspot.com/ http://charu-lekhni.blogspot.in/ https://www.facebook.com/groups/knowledge2009/ https://www.facebook.com/groups/wisdomworld2k/ https://www.facebook.com/LisConf https://www.facebook.com/pages/%E0%A4%95%E0%A4%B2%E0%A4%AE/261325763976997 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.