APA-referens (7:e uppl.)

(2008). Concept and measurement of employment in the informal sector (IS): (first of a two-part series on informal sector). Labstat Updates.

Chicago-referens (17:e uppl.)

"Concept and Measurement of Employment in the Informal Sector (IS): (first of a Two-part Series on Informal Sector)." Labstat Updates 2008.

MLA-referens (9:e uppl.)

"Concept and Measurement of Employment in the Informal Sector (IS): (first of a Two-part Series on Informal Sector)." Labstat Updates, 2008.