Spengel, J. W. (1874). Fortschrite Des Darwinismus. Eduard Heinrich Mayer.
Chicago Style (17th ed.) CitationSpengel, Johann Wilhelm. Fortschrite Des Darwinismus. Leipzig: Eduard Heinrich Mayer, 1874.
MLA (8th ed.) CitationSpengel, Johann Wilhelm. Fortschrite Des Darwinismus. Eduard Heinrich Mayer, 1874.
Warning: These citations may not always be 100% accurate.