Study of Euroepan Union Jean Omer Marie Gabriel Monnet, Jean-Baptiste Nicolas Robert Schuman in History of EU Theresa Mary May in Brexit European Politics European Union Very Short Introduction: https://www.englishbooks.jp/catalog/product_info.php/en/the-european-union-4th-edition-very-short-introduction-p-46495?fbclid=IwAR1om7rKHPJunXeJTzX8Tg-DLNbkWgBm1U94NcpJLWn-V7D8FnVvhoG1Dps