(Federal Water Pollution Control Administration, Interior Dept., Ohio Basin Region, Cincinnati, Ohio.)
Notes:
(Federal Water Pollution Control Administration, Interior Dept., Ohio Basin Region, Cincinnati, Ohio.) § For Sale by National Technical Information Service, Springfield, VA 22151. (Price upon application, PB 215576).
Availability:
§ For Sale by National Technical Information Service, Springfield, VA 22151. (Price upon application, PB 215576).