APA (7th ed.) Citation

Aiyura Valley Bird Society, Papua New Guinea, & Papua New Guinea. (1981). Birds of the Aiyura Valley. Dept. of Education.

Chicago Style (17th ed.) Citation

Aiyura Valley Bird Society, Papua New Guinea, and Papua New Guinea. Birds of the Aiyura Valley. [Port Moresby]: Dept. of Education, 1981.

MLA (9th ed.) Citation

Aiyura Valley Bird Society, et al. Birds of the Aiyura Valley. Dept. of Education, 1981.