Cita APA (7a ed.)

CICRED. (1974). The Population of Sri Lanka. C.I.C.R.E.D..

Cita Chicago Style (17a ed.)

CICRED. The Population of Sri Lanka. [Paris]: C.I.C.R.E.D., 1974.

Cita MLA (8a ed.)

CICRED. The Population of Sri Lanka. C.I.C.R.E.D., 1974.