Cita APA (7a ed.)

Freud, S., Freud, A., Strachey, J., & Tyson, A. (2001). Introductory lectures on psycho-analysis, (Parts 1 and 2): (1915 - 1916). Vintage.

Cita Chicago Style (17a ed.)

Freud, Sigmund, Anna Freud, James Strachey, y Alan Tyson. Introductory Lectures on Psycho-analysis, (Parts 1 and 2): (1915 - 1916). London: Vintage, 2001.

Cita MLA (8a ed.)

Freud, Sigmund, et al. Introductory Lectures on Psycho-analysis, (Parts 1 and 2): (1915 - 1916). Vintage, 2001.