APA引文

Freud, S. (1975). Introductory lectures on psychoanlysis. Penguin Books.

Chicago Edition Citation

Freud, Sigmund. Introductory Lectures on Psychoanlysis. England: Penguin Books, 1975.

MLA引文

Freud, Sigmund. Introductory Lectures on Psychoanlysis. Penguin Books, 1975.

警告：這些引文格式不一定是100％准確.