Marti, D. B. (1958). Key: Supplement. Problems and forms for Income tax and social security course. Prentice-Hall.
Chicago-viite (17. p.)Marti, David Benjamin. Key: Supplement. Problems and Forms for Income Tax and Social Security Course. [New York]: Prentice-Hall, 1958.
MLA-viite (8. p.)Marti, David Benjamin. Key: Supplement. Problems and Forms for Income Tax and Social Security Course. Prentice-Hall, 1958.
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