APA (7th ed.) Citation

Spengler, O. (2019). Archivmaterialien zu Oswald Spengler, 1880-1936.

Chicago Style (17th ed.) Citation

Spengler, Oswald. Archivmaterialien Zu Oswald Spengler, 1880-1936. 2019.

MLA (9th ed.) Citation

Spengler, Oswald. Archivmaterialien Zu Oswald Spengler, 1880-1936. 2019.

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