Cita APA

Stringer, A., & Stringer, A. (1936). The key to psychology: The key to the mystery of life love evil and death (enl. edition --.). Manchester: Psychology Publishing Co.

Citación estilo Chicago

Stringer, Alfred, y Alfred Stringer. The Key to Psychology: The Key to the Mystery of Life Love Evil and Death. enl. edition --. Manchester: Psychology Publishing Co, 1936.

Cita MLA

Stringer, Alfred, y Alfred Stringer. The Key to Psychology: The Key to the Mystery of Life Love Evil and Death. enl. edition --. Manchester: Psychology Publishing Co, 1936.