Pawłowski, Lucjan. “Book Review: J. Ikerd, A Revolution of the Middle… and The Pursuit of Happiness, on-Line Audiobook”. Problemy Ekorozwoju 6, no. 2 (July 1, 2011): 165. Accessed July 22, 2024. https://ph.pollub.pl/index.php/preko/article/view/4794.