Author
Paul, J. A.
2
Amarasinghe, N.
1
Ceylon Institute of Scientific and Industrial Research. Technical Library
1
Marasinghe, E. W.
1
Metzger, Barry
1
Poornananda, Kumaraswami Kurukal, 1920-
1
Social Science Documentation Centre (Sri Lanka)
1
University of Ceylon, Peradeniya. Library
1
Willis, J. C. (John Christopher), 1868-1958
1