Dillman, Don A.
Internet, mail, and mixed-mode surveys : the tailored design method / Don A. Dillman, Jolene D. Smyth and Leah Melani Christian - 3rd ed. - J. Wiley 2009
19550
Social surveys
Questionnaires
HM538 / Dil
Internet, mail, and mixed-mode surveys : the tailored design method / Don A. Dillman, Jolene D. Smyth and Leah Melani Christian - 3rd ed. - J. Wiley 2009
19550
Social surveys
Questionnaires
HM538 / Dil