Dyfyniad APA

ebrary, Inc, & Spies, R. B. (2007). Long-term ecological change in the Northern Gulf of Alaska. Elsevier.

Dyfyniad Arddull Chicago

ebrary, Inc, and Robert Bernard Spies. Long-term Ecological Change in the Northern Gulf of Alaska. Amsterdam: Elsevier, 2007.

Dyfyniad MLA

ebrary, Inc, and Robert Bernard Spies. Long-term Ecological Change in the Northern Gulf of Alaska. Elsevier, 2007.

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