Iljin, M. (1955). Was dich umgibt. Kinderbuchverlag.
Citazione stile Chigago Style (17a edizione)Iljin, M. Was Dich Umgibt. Berlin: Kinderbuchverlag, 1955.
Citatione MLA (8a ed.)Iljin, M. Was Dich Umgibt. Kinderbuchverlag, 1955.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.