APA
Leon S. I., . (1959). Encyclopedia of candy and ice-cream making. New York: Chemical Publishing Co.
Chicago
Leon Simon I, . 1959. Encyclopedia of candy and ice-cream making. New York: Chemical Publishing Co.
Harvard
Leon S. I., . (1959). Encyclopedia of candy and ice-cream making. New York: Chemical Publishing Co.
MLA
Leon Simon I, . Encyclopedia of candy and ice-cream making. New York: Chemical Publishing Co. 1959.