Cita APA (7th ed.)

Nebel, B. J., & Wright, R. T. (2000). Environmental science: The way the world works (7th ed.). Prentice-Hall.

Cita Chicago (17th ed.)

Nebel, Bernard J., i Richard T. Wright. Environmental Science: The Way the World Works. 7th ed. Upper Saddle River, N.J: Prentice-Hall, 2000.

Cita MLA (9th ed.)

Nebel, Bernard J., i Richard T. Wright. Environmental Science: The Way the World Works. 7th ed. Prentice-Hall, 2000.