Coates, B. J., & Lindgren, E. (1978). Report of a preliminary survey of the avifauna of the Ok Tedi area, Western Province, Papua New Guinea. Ok Tedi Development Company ; Office of Environment & Conservation, Dept. of Lands, National Mapping & Environment.
Cytowanie według stylu Chicago (wyd. 17)Coates, Brian J., i Eric Lindgren. Report of a Preliminary Survey of the Avifauna of the Ok Tedi Area, Western Province, Papua New Guinea. Boroko: Ok Tedi Development Company ; Office of Environment & Conservation, Dept. of Lands, National Mapping & Environment, 1978.
Cytowanie według stylu MLA (wyd. 9)Coates, Brian J., i Eric Lindgren. Report of a Preliminary Survey of the Avifauna of the Ok Tedi Area, Western Province, Papua New Guinea. Ok Tedi Development Company ; Office of Environment & Conservation, Dept. of Lands, National Mapping & Environment, 1978.