APA-viite (7. p.)
Wolffram, H. (2009). The stepchildren of science: Psychical research and parapsychology in Germany, c. 1870-1939. Rodopi.
Chicago-viite (17. p.)
Wolffram, Heather. The Stepchildren of Science: Psychical Research and Parapsychology in Germany, C. 1870-1939. Amsterdam ; New York: Rodopi, 2009.
MLA-viite (9. p.)
Wolffram, Heather. The Stepchildren of Science: Psychical Research and Parapsychology in Germany, C. 1870-1939. Rodopi, 2009.
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