Cita APA (7a ed.)
Freud, S., & Rieff, P. General Psychological Theory: Papers on Metapsychology. Collier.
Cita estilo Chicago (17a ed.)
Freud, Sigmund, y Philip Rieff. General Psychological Theory: Papers on Metapsychology. Nueva York, EUA: Collier.
Cita MLA (9a ed.)
Freud, Sigmund, y Philip Rieff. General Psychological Theory: Papers on Metapsychology. Collier.
警告：這些引文格式不一定是100％准確.