Pochemuchka
By: Aleksandr Ditrikh, Georgiĭ I͡U︡rmin.
Contributors: I͡U︡rmin, G.
Edition: [Izd. ispr., s sokr. i dop.].
Series: Detskoe spravochnoe bi͡u︡ro : ėnt͡s︡iklopedii͡a︡ dli͡a︡ li͡u︡boznatelʹnykh
Publisher: Astrelʹ; AST
Published: 2001
Place of publication: Moskva
Language: rus
Number of pages: 335
Subjects: Children's encyclopedias and dictionaries, Russian.