If you are looking for a historical edition, you can view a digitized 1964 version from the Russian State Children's Library.
Offers the text for online reading with pictures, as well as free downloads in PDF and DOCX formats. tsarevna nesmeiana kniga skachat
You can download a high-quality PDF version (approx. 19 MB) titled Nesmeyana-carevna. Lyubimye skazki illustrated by Marina Litvinova. If you are looking for a historical edition,