Lua APA (7ú heag.)

JOHNSTON J. (1972). ECONOMETRIC METHODS (2ND.). MCGRAW-HILL.

Lua i Stíl Chicago (17ú heag.)

JOHNSTON J. ECONOMETRIC METHODS. 2ND. AUCKLAND: MCGRAW-HILL, 1972.

Lua MLA (9ú heag.)

JOHNSTON J. ECONOMETRIC METHODS. 2ND. MCGRAW-HILL, 1972.

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