APA
Freud S., . (1966). Jokes and their Relation to the unconscious. New York: Penguin Books.
Chicago
Freud Sigmund, . 1966. Jokes and their Relation to the unconscious. New York: Penguin Books.
Harvard
Freud S., . (1966). Jokes and their Relation to the unconscious. New York: Penguin Books.
MLA
Freud Sigmund, . Jokes and their Relation to the unconscious. New York: Penguin Books. 1966.