Десетата планета
From Author Wars - https://authorwars.com/books/desetata-planeta-2643349.html
Editions/Publications:
- Unknown. Десетата планета (Unknown, С. Беляев, Народна просвета, 72 pages, Trade Paperback, Chapter Book)
From Author Wars - https://authorwars.com/books/desetata-planeta-2643349.html