Sri Lanka Department of Labour Library. (1979). Labour laws of Sri Lanka. Dept. of Labour Library.
Chicago-Zitierstil (17. Ausg.)Sri Lanka Department of Labour Library. Labour Laws of Sri Lanka. [Colombo]: Dept. of Labour Library, 1979.
MLA-Zitierstil (9. Ausg.)Sri Lanka Department of Labour Library. Labour Laws of Sri Lanka. Dept. of Labour Library, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.