OECD compendium of productivity indicators 2015. Paris : OECD, 2015. 90 s. OECD compendium of productivity indicators. Available on Internet: <http://www.oecd-ilibrary.org/industry-and-services/oecd-compendium-of-productivity-indicators-2015_pdtvy-2015-en> ISBN 978-92-64-22953-2. [Copy count : 1, currently available 1, at library only 0]