OECD Environmental Performance Reviews: Hungary 2018. Paris : OECD, 2018. 204 s. OECD Environmental Performance Reviews. Dostupné na : <https://www.oecd-ilibrary.org/environment/hungary-2018_9789264298613-en> ISBN 978-92-64-29859-0. [Počet ex. : 2, z toho voľných 1, prezenčne 1]