Spencer, H. (2019). Archivmaterialien zu Herbert Spencer, 1820-1903.
Chicago Style (17th ed.) CitationSpencer, Herbert. Archivmaterialien Zu Herbert Spencer, 1820-1903. 2019.
MLA (8th ed.) CitationSpencer, Herbert. Archivmaterialien Zu Herbert Spencer, 1820-1903. 2019.
Warning: These citations may not always be 100% accurate.