Perspectives on global development 2014 : boosting productivity to meet the middle-income challenge. Paris : OECD, 2014. 284 s. Perspectives on global development. Available on Internet: <http://www.oecd-ilibrary.org/content/book/persp_glob_dev-2014-en> ISBN 978-92-64-21060-8. [Copy count : 1, currently available 1, at library only 0]