Eckersley, R. (1998). Measuring progress: Is life getting better? CSIRO Publishing.
Cita Chicago Style (17a ed.)Eckersley, Richard. Measuring Progress: Is Life Getting Better? Collingwood, Vic.: CSIRO Publishing, 1998.
Cita MLA (9a ed.)Eckersley, Richard. Measuring Progress: Is Life Getting Better? CSIRO Publishing, 1998.
Precaución: Estas citas no son 100% exactas.