APA
                 (1946). Ceylon, the pearl of the Indian ocean. London, UK: Macmillan and Co Limited.
                
                Chicago
                 1946. Ceylon, the pearl of the Indian ocean. London, UK: Macmillan and Co Limited.
                
                Harvard
                 (1946). Ceylon, the pearl of the Indian ocean. London, UK: Macmillan and Co Limited.
                
                MLA
                 Ceylon, the pearl of the Indian ocean. London, UK: Macmillan and Co Limited. 1946.