Cita APA (7a ed.)
Gordon, T., & Sands, J. G. (1976). P.E.T. in action. Bantam Books.
Cita Chicago Style (17a ed.)
Gordon, Thomas, y Juduth Gordon Sands. P.E.T. in Action. Toronto: Bantam Books, 1976.
Cita MLA (9a ed.)
Gordon, Thomas, y Juduth Gordon Sands. P.E.T. in Action. Bantam Books, 1976.
Precaución: Estas citas no son 100% exactas.