APA-ийн эшлэл(7 дахь хэвлэлт)

Birkeland, C. (1987). Comparison between Atlantic and Pacific tropical marine coastal ecosystems: Community structure, ecological processes and productivity. UNESCO-COMAR.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Birkeland, Charles. Comparison Between Atlantic and Pacific Tropical Marine Coastal Ecosystems: Community Structure, Ecological Processes and Productivity. París: UNESCO-COMAR, 1987.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Birkeland, Charles. Comparison Between Atlantic and Pacific Tropical Marine Coastal Ecosystems: Community Structure, Ecological Processes and Productivity. UNESCO-COMAR, 1987.