APA

Blyton (Enid), .The Riddle of the Rajah's Ruby. : "Spring house, Spring Place,London".

Chicago

Blyton (Enid), .The Riddle of the Rajah's Ruby. : "Spring house, Spring Place,London".

Harvard

Blyton (Enid), .The Riddle of the Rajah's Ruby. : "Spring house, Spring Place,London".

MLA

Blyton (Enid), .: "Spring house, Spring Place,London". .