7 Bibliography
Barnett, V. (2002) Sample Survey Principles and Methods 3rd Ed. Arnold, London
Barnett, V. (2004) Environmental Statistics, Wiley, Chichester
Buckland, S.T., Anderson, D.R., Burnham, K.P. and Laake, J.L. (1993) Distance
Sampling: Estimating Abundance in Biological Populations,Chapman & HallCochran, W.G. (1977) Sampling Techniques, 3rd Ed. Wiley, New York
Dillman, D.A.(2000) Mail and Internet Surveys 2nd Ed. Wiley, New York
Groves, R.M. (1989) Survey Errors and Survey Costs. Wiley, New York
Lohr, S (2010). Sampling: Design and Analysis. 2nd edition. Boston: Brooks/Cole.
Peterson, R.A. Constructing Effective Questionnaires Sage, Thousand Oaks CA.
Thompson, S.K. (1992) Sampling Wiley, New York