Downing, R. I. (1958). National superannuation: Means test or contributionsn The 28th Joseph Fisher lecture in commerce, given in Adelaide on September 24, 1958. Griffin Press.
Chicago-viite (17. p.)Downing, Richard Ivan. National Superannuation: Means Test or Contributionsn The 28th Joseph Fisher Lecture in Commerce, Given in Adelaide on September 24, 1958. Adelaide: Griffin Press, 1958.
MLA-viite (9. p.)Downing, Richard Ivan. National Superannuation: Means Test or Contributionsn The 28th Joseph Fisher Lecture in Commerce, Given in Adelaide on September 24, 1958. Griffin Press, 1958.
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