Marion Cabell Tyree, Housekeeping in Old Virginia, Louisville, Kentucky, John P. Morton & Co., (lire en ligne), « Iced Tea », p. 64
books.google.com
Estelle Woods Wilcox, The Original Buckeye Cook Book and Practical Housekeeping: A Compilation of Choice and Carefully Tested Recipes, Reilly & Britton Company, (lire en ligne), « Iced Tea », p. 188