BOULDING, K. E. Economic Analysis#Kenneth E. Boulding. Harper & Brothers.
Lua i Stíl Chicago (17ú heag.)BOULDING, Kenneth E. Economic Analysis#Kenneth E. Boulding. Harper & Brothers.
Lua MLA (8ú heag.)BOULDING, Kenneth E. Economic Analysis#Kenneth E. Boulding. Harper & Brothers.
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