APA (7th ed.) Citation

Engels, F. Archivmaterialien zu Friedrich Engels, 1820-1895.

Chicago Style (17th ed.) Citation

Engels, Friedrich. Archivmaterialien Zu Friedrich Engels, 1820-1895.

MLA (9th ed.) Citation

Engels, Friedrich. Archivmaterialien Zu Friedrich Engels, 1820-1895.

Warning: These citations may not always be 100% accurate.