Wedgwood, A., & Sansom, K. (2003). Willingness to pay surveys: A streamlimed approach ; guidance notes for small town water services. Water, Engineering and Development Centre.
Chicago-Zitierstil (17. Ausg.)Wedgwood, Alison, und Kevin Sansom. Willingness to Pay Surveys: A Streamlimed Approach ; Guidance Notes for Small Town Water Services. Loughborough: Water, Engineering and Development Centre, 2003.
MLA-Zitierstil (9. Ausg.)Wedgwood, Alison, und Kevin Sansom. Willingness to Pay Surveys: A Streamlimed Approach ; Guidance Notes for Small Town Water Services. Water, Engineering and Development Centre, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.