APA (7e ed.) Bronvermelding

Nebel, B. J., & Wright, R. T. (1998). Environmental science: The way the world works (6th ed.). Prentice Hall.

Chicago (17e ed.) Bronvermelding

Nebel, Bernard J., en Richard T. Wright. Environmental Science: The Way the World Works. 6th ed. Upper Saddle River, N.J: Prentice Hall, 1998.

MLA (9e ed.) Bronvermelding

Nebel, Bernard J., en Richard T. Wright. Environmental Science: The Way the World Works. 6th ed. Prentice Hall, 1998.