Cita APA (7a ed.)
Johnson, R. R. (1976). Elementary statistics (2nd ed.). Duxbury.
Cita Chicago Style (17a ed.)
Johnson, Robert R. Elementary Statistics. 2nd ed. Massachusetts: Duxbury, 1976.
Cita MLA (9a ed.)
Johnson, Robert R. Elementary Statistics. 2nd ed. Duxbury, 1976.
Precaución: Estas citas no son 100% exactas.