Theobald, A. (1987). Nordsee. Gruner + Jahr.
Chicago Style (17th ed.) CitationTheobald, Adolf. Nordsee. Hamburg: Gruner + Jahr, 1987.
MLA (9th ed.) CitationTheobald, Adolf. Nordsee. Gruner + Jahr, 1987.
Warning: These citations may not always be 100% accurate.