APA (7th ed.) Citation

Panek, R. (2005). The invisible century: Einstein, Freud and the search for hidden universes. Harper Perennial.

Chicago Style (17th ed.) Citation

Panek, Richard. The Invisible Century: Einstein, Freud and the Search for Hidden Universes. London: Harper Perennial, 2005.

MLA (9th ed.) Citation

Panek, Richard. The Invisible Century: Einstein, Freud and the Search for Hidden Universes. Harper Perennial, 2005.