discussed Cited "see, e.g." Nueces County Navigation District No. 1 v. Interstate Commerce Commission, Producers Grain Corporation v. Interstate Commerce Commission, Nueces County Navigation District No. 1 v. Interstate Commerce Commission, Producers Grain Corporation v. Interstate Commerce Commission See, e.g., Chicago & Eastern Illinois Railroad Company v. United States, 384 F.Supp. 298 (N.D.Ill.1974), aff'd. mem. 421 U.S. 956 , 95 S.Ct. 1943 , 44 L.Ed.2d 445 (1975). 27 The issue before us involves solely the third element needed to establish a claim of discriminatory rate-that the carrier be the "common source" of both prejudicial and preferential rates.

cited Cited "see, e.g." Nueces County Navigation District No. 1 v. Interstate Commerce Commission See, e.g., Chicago & Eastern Illinois Railroad Company v. United States, 384 F.Supp. 298 (N.D.Ill.1974), aff’d mem., 421 U.S. 956 , 95 S.Ct. 1943 , 44 L.Ed.2d 445 (1975).