Παραπομπή APA

Papola,T S. (1981). Urban informal sector in a developing economy. Vikas Publishing House Pvt. Ltd.

Παραπομπή Chicago Style

Papola,T S. Urban Informal Sector in a Developing Economy. New Delhi: Vikas Publishing House Pvt. Ltd, 1981.

Παραπομπή MLA

Papola,T S. Urban Informal Sector in a Developing Economy. Vikas Publishing House Pvt. Ltd, 1981.