Lua APA (7ú heag.)

Trotman-Dickenson, D. I. (1969). Economic Workbook and Data. ELSEVIER.

Lua i Stíl Chicago (17ú heag.)

Trotman-Dickenson, D. I. Economic Workbook and Data. ELSEVIER, 1969.

Lua MLA (8ú heag.)

Trotman-Dickenson, D. I. Economic Workbook and Data. ELSEVIER, 1969.

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