Zettler, M. L., & Zettler, A. (2017). Marine and freshwater Amphipoda from the Baltic Sea and adjacent territories. ConchBooks.
Chicago Style (17th ed.) CitationZettler, Michael L., and Anja Zettler. Marine and Freshwater Amphipoda from the Baltic Sea and Adjacent Territories. Harxheim: ConchBooks, 2017.
MLA (9th ed.) CitationZettler, Michael L., and Anja Zettler. Marine and Freshwater Amphipoda from the Baltic Sea and Adjacent Territories. ConchBooks, 2017.
Warning: These citations may not always be 100% accurate.