Authorship
Early printings of the book were credited on the cover as simply "By a nuclear physicist and a medical doctor", while subsequent ones credited L. Ron Hubbard as being the nuclear physicist and "Medicus" as being the doctor.
By the 1979 edition, the "medical doctor" was credited as being Richard Farley.
In the book's most recent edition, the book's authorship is attributed to Hubbard and Dr. Gene Denk and Dr. Farley R. Spink.
Read more about this topic: All About Radiation
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“The Bible is good enough for me, just the old book under which I was brought up. I do not want notes or criticisms, or explanations about authorship or origins, or even cross- references. I do not need, or understand them, and they confuse me.”
—Grover Cleveland (1837–1908)