APA (7th ed.) Citation

Howells, G. P. (1994). Water quality for freshwater fish: Further advisory criteria. Gordon and Breach Science Publishers.

Chicago Style (17th ed.) Citation

Howells, Gwyneth Parry. Water Quality for Freshwater Fish: Further Advisory Criteria. Yverdon, Switzerland: Gordon and Breach Science Publishers, 1994.

MLA (9th ed.) Citation

Howells, Gwyneth Parry. Water Quality for Freshwater Fish: Further Advisory Criteria. Gordon and Breach Science Publishers, 1994.