Dundes, Alan. "Life is Like a Chicken Coop Ladder", ISBN0-8143-2038-4. Preface, p.vii: "An earlier version of this essay was presented in October 1980 as the presidential address of the American Folklore Society at its annual meeting in Pittsburgh."
Alan Dundes, "From Etic to Emic Units in the Structural Study of Folktales", The Journal of American Folklore; Vol. 75, No. 296 (Apr. - Jun. 1962), pp. 95-105 JSTOR538171