Lange, O. (1970). Introduction to Economic Cybernetics. ELSEVIER.
Lua i Stíl Chicago (17ú heag.)Lange, Oskar. Introduction to Economic Cybernetics. ELSEVIER, 1970.
Lua MLA (8ú heag.)Lange, Oskar. Introduction to Economic Cybernetics. ELSEVIER, 1970.
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