Double taxation conventions with Belgium and Australia; hearing before subcommittee, S3d Congress, 1st session, on Executives I (Slst Cong., 1st sess.), A (83d Cong. 1st sess.), I (83d Cong., 1st sess.), J (83d Cong., 1st sess.), and K (83d Cong., 1st sess.), double taxation treaties with Belgium and Australia, June 20, 1953.