By ΠΠ΅Π½ΠΈΡΠΎΠ²Π° ΠΠ°ΡΡΡ
Π Π°Π·Π²ΠΈΠ²Π°ΡΡΠ°Ρ ΠΊΠ½ΠΈΠ³Π° Π΄Π»Ρ Π΄Π΅ΡΠ΅ΠΉ.
Educational book for children.