Cita APA (7a ed.)

Hussmanns, R. (2004). Measuring the informal economy: From employment in the formal sector to informal employment. International Labour Organization.

Cita Chicago Style (17a ed.)

Hussmanns, Ralf. Measuring the Informal Economy: From Employment in the Formal Sector to Informal Employment. International Labour Organization, 2004.

Cita MLA (9a ed.)

Hussmanns, Ralf. Measuring the Informal Economy: From Employment in the Formal Sector to Informal Employment. International Labour Organization, 2004.