Johnson, R. (1992). Elementary statistics (6th ed.). Duxbury.
Citación estilo ChicagoJohnson, Robert. Elementary Statistics. 6th ed. Belmont: Duxbury, 1992.
Cita MLAJohnson, Robert. Elementary Statistics. 6th ed. Duxbury, 1992.
Warning: These citations may not always be 100% accurate.