Walter, H. Williwill Cash-Express. Hans-Willi Walter.
Cita Chicago (17th ed.)Walter, Hans-Willi. Williwill Cash-Express. Leonberg: Hans-Willi Walter.
Cita MLA (8th ed.)Walter, Hans-Willi. Williwill Cash-Express. Hans-Willi Walter.
Atenció: Aquestes cites poden no estar 100% correctes.