APA (7th ed.) Citation

Ayres, D., & Hellier, D. (1997). Dictionary of environmentally important chemicals / David Ayres and Desmond Hellier. Blackie Academic & Professional.

Chicago Style (17th ed.) Citation

Ayres, David, and Desmond Hellier. Dictionary of Environmentally Important Chemicals / David Ayres and Desmond Hellier. London: Blackie Academic & Professional, 1997.

MLA (9th ed.) Citation

Ayres, David, and Desmond Hellier. Dictionary of Environmentally Important Chemicals / David Ayres and Desmond Hellier. Blackie Academic & Professional, 1997.

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