APA (7th ed.) Citation

Ferrara, O., Debrunner, A. K., Alexander VI. Papst, & Schneider, R. (1957). Alexander VI. Borgia. Artemis Verl.

Chicago Style (17th ed.) Citation

Ferrara, Orestes, Anna K. Debrunner, Alexander VI. Papst, and Reinhold Schneider. Alexander VI. Borgia. Zürich Stuttgart: Artemis Verl, 1957.

MLA (9th ed.) Citation

Ferrara, Orestes, et al. Alexander VI. Borgia. Artemis Verl, 1957.

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