Ahmed, F. (1999). Labour in informal sector. Manak.
Cita Chicago (17th ed.)Ahmed, Fazal. Labour in Informal Sector. New Delhi: Manak, 1999.
Cita MLA (9th ed.)Ahmed, Fazal. Labour in Informal Sector. Manak, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.