APA (7th ed.) Citation

Engelman, E., Scholz-Strasser, I., & Johnson, L. (1998). Sigmund Freud: Vienna IX. Berggasse 19. Universe.

Chicago Style (17th ed.) Citation

Engelman, Edmund, Inge Scholz-Strasser, and Lonnie Johnson. Sigmund Freud: Vienna IX. Berggasse 19. [Vienna]: Universe, 1998.

MLA (9th ed.) Citation

Engelman, Edmund, et al. Sigmund Freud: Vienna IX. Berggasse 19. Universe, 1998.