APA (7th ed.) Citation

Sixt V, p. (1589). [Literae Apostolicae Inter Innumeras]. Paolo Blado.

Chicago Style (17th ed.) Citation

Sixt V, papa. [Literae Apostolicae Inter Innumeras]. Roma: Paolo Blado, 1589.

MLA (9th ed.) Citation

Sixt V, papa. [Literae Apostolicae Inter Innumeras]. Paolo Blado, 1589.

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