APA (7th ed.) Citation

Ayres, D. C., & Hellier, D. (1998). Dictionary of environmentally important chemicals. Blackie Academic & Professional.

Chicago Style (17th ed.) Citation

Ayres, D. C., and Desmond Hellier. Dictionary of Environmentally Important Chemicals. London ; New York: Blackie Academic & Professional, 1998.

MLA (9th ed.) Citation

Ayres, D. C., and Desmond Hellier. Dictionary of Environmentally Important Chemicals. Blackie Academic & Professional, 1998.