C. A. 5th Cir. [Certiorari granted, 419 U. S. 1067.] Motion of American Trading & Production Corp. for leave to file a brief as amicus curiae granted.
C. A. 5th Cir. [Certiorari granted, 419 U. S. 1067.] Motion of American Trading & Production Corp. for leave to file a brief as amicus curiae granted.