APA-ийн эшлэл(7 дахь хэвлэлт)

National Research Council (U.S.). Committee on Arctic Solid-Earth Geosciences. (1991). Opportunities and priorities in Arctic geoscience. National Academy Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

National Research Council (U.S.). Committee on Arctic Solid-Earth Geosciences. Opportunities and Priorities in Arctic Geoscience. Washington, D.C.: National Academy Press, 1991.

MLA -ийн эшлэл (9 дэх хэвлэлт)

National Research Council (U.S.). Committee on Arctic Solid-Earth Geosciences. Opportunities and Priorities in Arctic Geoscience. National Academy Press, 1991.

Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.