APA (7th ed.) Citation

(1981). The Baltic Sea. Elsevier Scientific Pub. Co.

Chicago Style (17th ed.) Citation

The Baltic Sea. Amsterdam: Elsevier Scientific Pub. Co, 1981.

MLA (9th ed.) Citation

The Baltic Sea. Elsevier Scientific Pub. Co, 1981.

Warning: These citations may not always be 100% accurate.