APA استشهاد

H.W.Singer, N. H. a. R. T. (1990). Trade Liberalization in the 1990s. Indus.

استشهاد بنمط شيكاغو

H.W.Singer, Neelambar Hatti and Rameshwar Tandon. Trade Liberalization in the 1990s. New Delhi: Indus, 1990.

MLA استشهاد

H.W.Singer, Neelambar Hatti and Rameshwar Tandon. Trade Liberalization in the 1990s. Indus, 1990.