Nebel, B. J. (1998). Environmental sciencethe way the world works. Prentice-Hall.
Cita Chicago Style (17a ed.)Nebel, Bernard J. Environmental Sciencethe Way the World Works. Prentice-Hall, 1998.
Cita MLA (8a ed.)Nebel, Bernard J. Environmental Sciencethe Way the World Works. Prentice-Hall, 1998.
Precaución: Estas citas no son 100% exactas.