APA (7th ed.) Citation

Ketteler, W. E., & Goyau, G. (1910). Ketteler. Saturnino Calleja Fernández.

Chicago Style (17th ed.) Citation

Ketteler, Wilhelm Emmanuel, and Georges Goyau. Ketteler. Madrid: Saturnino Calleja Fernández, 1910.

MLA (9th ed.) Citation

Ketteler, Wilhelm Emmanuel, and Georges Goyau. Ketteler. Saturnino Calleja Fernández, 1910.

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