
    No. 76-651.
    No. 75-715.
    No. 75-718.
    Teamsters Local Union 657 v. Rodriguez et al.; Teamsters Local Union 657 v. Herrera et al.; and Teamsters Local Union 657 v. Resendis et al.; Southern Conference of Teamsters v. Rodriguez et al.; Southern Conference of Teamsters v. Herrera et al.; and Southern Conference of Teamsters v. Resendis et al.; and East Texas Motor Freight System, Inc. v. Rodriguez et al.
   C. A. 5th Cir., [Certiorari granted, 425 U. S. 990.] Motion of NAACP Legal Defense & Educational Fund, Inc., for leave to file a brief as amicus curiae granted.  