Haeckel, E. (1969). Tropenfahrten. Brockhaus.
Chicago Style (17th ed.) CitationHaeckel, Ernst. Tropenfahrten. Leipzig: Brockhaus, 1969.
MLA (8th ed.) CitationHaeckel, Ernst. Tropenfahrten. Brockhaus, 1969.
Warning: These citations may not always be 100% accurate.