APA (7e ed.) Bronvermelding

Murphy, G., & Dale, L. A. (1970). Challenge of psychical research: A primer of parapsychology. Harper and Row.

Chicago (17e ed.) Bronvermelding

Murphy, Gardner, en Laura A. Dale. Challenge of Psychical Research: A Primer of Parapsychology. New York ; London: Harper and Row, 1970.

MLA (8e ed.) Bronvermelding

Murphy, Gardner, en Laura A. Dale. Challenge of Psychical Research: A Primer of Parapsychology. Harper and Row, 1970.