Rickards, M. (1988). Collecting Printed Ephemera. Phaidon - Christies.
Chicago-Zitierstil (17. Ausg.)Rickards, Maurice. Collecting Printed Ephemera. Oxford: Phaidon - Christies, 1988.
MLA-Zitierstil (8. Ausg.)Rickards, Maurice. Collecting Printed Ephemera. Phaidon - Christies, 1988.
警告：這些引文格式不一定是100％准確.