BLYTON, E. (2013). THE RIDDLE OF THE HOLLOW TREE. BOUNTY BOOKS.
Cita Chicago Style (17a ed.)BLYTON, ENID. THE RIDDLE OF THE HOLLOW TREE. BOUNTY BOOKS, 2013.
Cita MLA (9a ed.)BLYTON, ENID. THE RIDDLE OF THE HOLLOW TREE. BOUNTY BOOKS, 2013.
Precaución: Estas citas no son 100% exactas.