Cita APA (7th ed.)

NORDHAUS WILLAM D. (1992). ECONOMICS (14.). MCGRAW-HILL.

Cita Chicago (17th ed.)

NORDHAUS WILLAM D. ECONOMICS. 14. NEW YORK: MCGRAW-HILL, 1992.

Cita MLA (9th ed.)

NORDHAUS WILLAM D. ECONOMICS. 14. MCGRAW-HILL, 1992.