APA (7th ed.) Citation

Mongkut, K. o. S., Seni Pramoj, M., & Kukrit Pramoj, M. (1987). A king of Siam speaks. Siam Society.

Chicago Style (17th ed.) Citation

Mongkut, King of Siam, M.R Seni Pramoj, and M.R Kukrit Pramoj. A King of Siam Speaks. Bangkok: Siam Society, 1987.

MLA (8th ed.) Citation

Mongkut, King of Siam, et al. A King of Siam Speaks. Siam Society, 1987.

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