Under Pressure: The Squeezed Middle Class. Paris : OECD, 2019. 169 s. Dostupné na : <https://www.oecd-ilibrary.org/social-issues-migration-health/under-pressure-the-squeezed-middle-class_689afed1-en> ISBN 978-92-64-54283-9. [Počet ex. : 1, z toho voľných 0, prezenčne 1]