Waller, James. Drinkology: The Art and Science of the Cocktail. New York: Stewart, Tabori & Chang, 224. o. (2003). ISBN 1-58479-304-X „Let's get the whole worm thing straight right now, muchachos. If there's a worm at the bottom of your tequila bottle, you've either purchased gag-inducing hooch aimed at gullible gringos, or your top-shelf booze is infested by some kind of alcohol-breathing, alien bug.”