Poller, S. (1980). Was man alles daraus machen kann. Kinderbuchverlag.
Citazione stile Chigago Style (17a edizione)Poller, Siegfried. Was Man Alles Daraus Machen Kann. Berlin: Kinderbuchverlag, 1980.
Citatione MLA (8a ed.)Poller, Siegfried. Was Man Alles Daraus Machen Kann. Kinderbuchverlag, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.