APA (7th ed.) Citation

Burd, R. S., & Fry, F. E. J. (1968). An evaluation of water quality standards. [publisher not identified].

Chicago Style (17th ed.) Citation

Burd, R. S., and F. E. J. Fry. An Evaluation of Water Quality Standards. [Place of publication not identified]: [publisher not identified], 1968.

MLA (9th ed.) Citation

Burd, R. S., and F. E. J. Fry. An Evaluation of Water Quality Standards. [publisher not identified], 1968.