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 | International Journal of Academic Library and Information Science Vol. 3(6), pp. 156–162, June, 2015. ISSN: 2360-7858 DOI: 10.14662/IJALIS2015.034 
 Full Length Research 
 Reference Sources, Collections, Ethics and Evaluation of Services for Effective Readers Service Delivery: Case Study of Energy Research Centre Library, University of Nigeria Nsukka 
 1Jonathan N. Chimah, 2 Chineyere P. Okoro and 3Marvelous B. Nwajei 
 1National Centre for Energy Research & Development Library, University of Nigeria Nsukka. E-mail: jonachim2000@yahoo.com 2Alvan Ikoku Federal College of Education Library, Owerri 3Dept. of Library & Information Science, Federal Polytechnic Oko 
 Accepted 24 June 2015 
 
 
		In this 
		paper, authors have set out to define and briefly explain reference 
		sources and collection development, reference ethics and evaluation of 
		reference services offered to library users generally. They made 
		particular reference to the National Centre for Energy Research & 
		Development (NCERD) at the University of Nigeria Nsukka campus. The 
		general objective of the study is to identify library resources 
		available at NCERD Library and assess the quantum of usability by 
		patrons. The Code of Ethics by which reference services are guided 
		consists of eight principles which include items I, II, III, IV, VII, 
		and VIII are presented. Digital References Services are also discussed. 
		Analytical survey design was employed in this study. Documentary sources 
		are used because they contain the information the researchers want. 
		Observational technique was used to collect primary data from ‘library 
		users’ statistics records and loaning books’ of the library. Data 
		collected were analyzed using statistical tools and percentages. 
		Findings show that available reference sources in NCERD library include: 
		books, journals, theses/dissertations, conference proceedings and 
		newspapers. It also reveals that there were variations of number of 
		materials consulted by library users between the periods 2005 and 2012 
		under study. The authors conclude with recommendations on which include 
		that NCERD library staff should propose for the procurement of resources 
		in order to satisfy the information needs of energy researchers in the 
		establishment. Cite This Article As: Chimah JN, Okoro CP, Nwajei MB (2015). Reference Sources, Collections, Ethics and Evaluation of Services for Effective Readers Service Delivery: Case Study of Energy Research Centre Library, University of Nigeria Nsukka. Inter. J. Acad. Lib. Info. Sci. 3(6): 156-162. 
 
 
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