APA (7th ed.) Citation

Mahaffy, J. P. (2019). Archivmaterialien zu John P. Mahaffy, 1839-1919.

Chicago Style (17th ed.) Citation

Mahaffy, John P. Archivmaterialien Zu John P. Mahaffy, 1839-1919. 2019.

MLA (8th ed.) Citation

Mahaffy, John P. Archivmaterialien Zu John P. Mahaffy, 1839-1919. 2019.

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