?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.title=A+t%C3%A1rsadalombiztos%C3%ADt%C3%A1s+a+hatodik+%C3%B6t%C3%A9ves+terv+idej%C3%A9n&rft.date=2020&rft.isbn=978-615-6060-30-3&rft.genre=bookitem