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  1. Deraniyagala, P. E. P. · 1951

    The Broad Billed Rollers of India and Ceylon

    Proceedings of the Seventh Annual Sessions of the Ceylon Association of Science 2: 23–24 · Book Chapter

  2. Deraniyagala, P. E. P. · 1954

    New discoveries???

    Admin. Rept. of the Dir. Nat. Museums, Ceylon, for 1953, Pt. IV, Educ., Sci., and Art E: 9 · Book Chapter

  3. Deraniyagala, P. E. P. · 1955

    Untitled record

    Admin. Rept. of the Dir. Nat. Museums, Ceylons, for 1954, Pt. IV, Educ., Sci., and Art E: 5 · Book Chapter

  4. Deraniyagala, P. E. P. · 1959

    New discoveries

    Admin. Rept. of the Dir. Nat. Museums, Ceylon, for 1958, Pt. IV, Educ., Sci.,, and Art E: 33 · Book Chapter