Marga Institute. (1974). The Sinhala reading public: A study carried out. Marga Institute.
Citazione stile Chigago Style (17a edizione)Marga Institute. The Sinhala Reading Public: A Study Carried Out. Sri Lanka: Marga Institute, 1974.
Citatione MLA (9a ed.)Marga Institute. The Sinhala Reading Public: A Study Carried Out. Marga Institute, 1974.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.