Cita APA (7th ed.)

Lubell, H. (1991). The informal sector in the 1980s and 1990s. Development Centre of the Organisation for Economic Co-operation and Development ; OECD Publications and Information Centre, distributor].

Cita Chicago (17th ed.)

Lubell, Harold. The Informal Sector in the 1980s and 1990s. Paris : [Washington, D.C.: Development Centre of the Organisation for Economic Co-operation and Development ; OECD Publications and Information Centre, distributor], 1991.

Cita MLA (9th ed.)

Lubell, Harold. The Informal Sector in the 1980s and 1990s. Development Centre of the Organisation for Economic Co-operation and Development ; OECD Publications and Information Centre, distributor], 1991.