Papola, T. S. (1981). Urban informal sector in a developing economy. Vikas Publishing House.
Citazione stile Chigago Style (17a edizione)Papola, T. S. Urban Informal Sector in a Developing Economy. New Delhi: Vikas Publishing House, 1981.
Citatione MLA (9a ed.)Papola, T. S. Urban Informal Sector in a Developing Economy. Vikas Publishing House, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.