Cita APA (7th ed.)

Spellman, F. R. (1999). The science of environmental pollution. Technomic Pub. Co..

Cita Chicago (17th ed.)

Spellman, Frank R. The Science of Environmental Pollution. Lancaster, Pa.: Technomic Pub. Co., 1999.

Cita MLA (8th ed.)

Spellman, Frank R. The Science of Environmental Pollution. Technomic Pub. Co., 1999.

Atenció: Aquestes cites poden no estar 100% correctes.