Cita APA (7th ed.)

Solow, R. M. (1992). An almost practical step toward sustainability. Resources for the Future.

Cita Chicago (17th ed.)

Solow, Robert M. An Almost Practical Step Toward Sustainability. Washington, D.C: Resources for the Future, 1992.

Cita MLA (9th ed.)

Solow, Robert M. An Almost Practical Step Toward Sustainability. Resources for the Future, 1992.