Benigono Aguirre. "Cancun under Gilbert: Preliminary Observations"(PDF). International Journal of Mass Emergencies and Disasters March 1989, Vol. 7, No.1, pp. 69–82. Archived from the original(PDF) on December 10, 2005. Retrieved October 1, 2006.
Benigono Aguirre. "Cancun under Gilbert: Preliminary Observations"(PDF). International Journal of Mass Emergencies and Disasters March 1989, Vol. 7, No.1, pp. 69–82. Archived from the original(PDF) on December 10, 2005. Retrieved October 1, 2006.