Singer, H. W., Hatti, N., & Tandon, R. (1990). North-South trade in manufactures. Ashish Publishing House.
Tohutoru Kātū Chicago (17th ed.)Singer, H. W., Neelambar Hatti, me Rameshwar Tandon. North-South Trade in Manufactures. New Delhi: Ashish Publishing House, 1990.
Tohutoro MLA (9th ed.)Singer, H. W., et al. North-South Trade in Manufactures. Ashish Publishing House, 1990.
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