O'SULLIVAN, Kyran - BARNES, Douglas F. Energy policies and multitopic household surveys : guidelines for questionnaire design in living standards measurement studies. Washington, D.C. : The World Bank, 2007. 52 s. World Bank working paper, no. 90. ISBN 0-8213-6878-8. [Počet ex. : 1, z toho voľných 0, prezenčne 1]