Parsons, S. A. J. (1972). How to find out about economics. ELSEVIER.
Lua i Stíl Chicago (17ú heag.)Parsons, S. A. J. How to Find Out About Economics. ELSEVIER, 1972.
Lua MLA (8ú heag.)Parsons, S. A. J. How to Find Out About Economics. ELSEVIER, 1972.
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