International cooperation Administration , [date of publication not identified]
Buku Teks
Davy, John, author
Tisara Prakasakayo , 1821
Buku Teks
Paranavitana, Senarat, author
Lake House Investments, 1972
Buku Teks
Amerasinghe, Anthony Ranjit Bevis, author
Lake House Investments, 1971
Buku Teks
Hulugalle, H.A.J.
Lake House Investments, 1969
Buku Teks