APA
International Labour Office, International Labour Conference S. S., . (1991). The Dilemma of the informal sector. Geneva: ILO.
Chicago
International Labour Office, International Labour Conference Seventy-eighth Session, . 1991. The Dilemma of the informal sector. Geneva: ILO.
Harvard
International Labour Office, International Labour Conference S. S., . (1991). The Dilemma of the informal sector. Geneva: ILO.
MLA
International Labour Office, International Labour Conference Seventy-eighth Session, . The Dilemma of the informal sector. Geneva: ILO. 1991.