(2 resultados)

97,96€(IVA inc.)

Methodology of longitudinal surveys
  • Lynn, Peter
  • 978-0-470-01871-2
  • 2009-01-23
29,86€(IVA inc.)

Survey research in practice
  • Thomas, Roger
  • 978-0-7619-7108-5
  • 2008-02-01