Hoel, P. G. (1960). Elementary statistics (2nd printing.). John Wiley & Sons.
Cita Chicago Style (17a ed.)Hoel, Paul Gerhard. Elementary Statistics. 2nd printing. New York [etc.]: John Wiley & Sons, 1960.
Cita MLA (9a ed.)Hoel, Paul Gerhard. Elementary Statistics. 2nd printing. John Wiley & Sons, 1960.
Precaución: Estas citas no son 100% exactas.