Jayasena, A. I. (1977). Changes in the population distribution of Ceylon and regional economic development, 1911-1953. Submitted to the Graduate School, University of the Philippines ... for the degree of Mater of Science in Geography [microform]. Photoduplication Service. University of the Philippines Library.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Jayasena, Amara Indrani. Changes in the Population Distribution of Ceylon and Regional Economic Development, 1911-1953. Submitted to the Graduate School, University of the Philippines ... for the Degree of Mater of Science in Geography [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Jayasena, Amara Indrani. Changes in the Population Distribution of Ceylon and Regional Economic Development, 1911-1953. Submitted to the Graduate School, University of the Philippines ... for the Degree of Mater of Science in Geography [microform]. Photoduplication Service. University of the Philippines Library, 1977.