Richertsen, J. Poorin padippinaikal: Ilankai ulnaaddup poorin selavukalum thaakkankalum porulaathara elapukkalum. Social Scientists' Association.
Chicago Style (17th ed.) CitationRichertsen, John. Poorin Padippinaikal: Ilankai Ulnaaddup Poorin Selavukalum Thaakkankalum Porulaathara Elapukkalum. Colombo: Social Scientists' Association.
MLA (9th ed.) CitationRichertsen, John. Poorin Padippinaikal: Ilankai Ulnaaddup Poorin Selavukalum Thaakkankalum Porulaathara Elapukkalum. Social Scientists' Association.
Warning: These citations may not always be 100% accurate.