APA استشهاد

Hajra,S. (1984). International comparison of labour productivity. Tulsi publishing house.

استشهاد بنمط شيكاغو

Hajra,S. International Comparison of Labour Productivity. New Delhi: Tulsi publishing house, 1984.

MLA استشهاد

Hajra,S. International Comparison of Labour Productivity. Tulsi publishing house, 1984.