APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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