APA (7th ed.) Citation
(1689). Jllustri a [i. e. ac] Potentissimo Regi Siami Jnnocentius Papa XI. Roma, 1689 Jan 7.
Chicago Style (17th ed.) Citation
Jllustri a [i. E. Ac] Potentissimo Regi Siami Jnnocentius Papa XI. Roma, 1689 Jan 7. 1689.
MLA (9th ed.) Citation
Jllustri a [i. E. Ac] Potentissimo Regi Siami Jnnocentius Papa XI. Roma, 1689 Jan 7. 1689.
Warning: These citations may not always be 100% accurate.