Poller, S. (1980). Was man alles daraus machen kann. Kinderbuchverlag.
Cita Chicago (17th ed.)Poller, Siegfried. Was Man Alles Daraus Machen Kann. Berlin: Kinderbuchverlag, 1980.
Cita MLA (8th ed.)Poller, Siegfried. Was Man Alles Daraus Machen Kann. Kinderbuchverlag, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.