APA (7th ed.) Citation

Freud, S. (1994). The major works of Sigmund Freud (2nd ed., 5th printing.). Encyclopaedia Britannica.

Chicago Style (17th ed.) Citation

Freud, Sigmund. The Major Works of Sigmund Freud. 2nd ed., 5th printing. Chicago, Ill [etc.]: Encyclopaedia Britannica, 1994.

MLA (9th ed.) Citation

Freud, Sigmund. The Major Works of Sigmund Freud. 2nd ed., 5th printing. Encyclopaedia Britannica, 1994.