APA (7th ed.) Citation

Purves, D. (1977). Trace element contamination of the environment. Elsevier Scientific Pub. Co..

Chicago Style (17th ed.) Citation

Purves, David. Trace Element Contamination of the Environment. Amsterdam ; New York: Elsevier Scientific Pub. Co., 1977.

MLA (9th ed.) Citation

Purves, David. Trace Element Contamination of the Environment. Elsevier Scientific Pub. Co., 1977.

Warning: These citations may not always be 100% accurate.