Alaska Biological Research,
Summer and fall waterbird investigations along the northwest Alaskan gas pipeline route, Alaska, 1980 : final report
Alaska segment, Alaska Natural Gas Transportation System.
Ritchie, Robert J., 1949-
Hawkings, James.
Alaska Biological Research (Firm)
Northwest Alaskan Pipeline Company.
prepared by Robert Ritchie, James Hawkings.
Summer and fall waterbird investigations along the northwest Alaskan gas pipeline route, Alaska, 1980 : final report