José A. Colón (1974-08-21). Report on Tropical Storm Alma(PDF). San Juan Weather Service Forecast Office (Report). National Hurricane Center. p. 2. Retrieved 2014-03-15.
José A. Colón (1974-08-21). Report on Tropical Storm Alma(PDF). San Juan Weather Service Forecast Office (Report). National Hurricane Center. Retrieved 2014-03-15.