Mangion, Thomas W.
Mail Surveys : improving the quality - Theousand Oaks: Sage Publication, 1995 - xii,129p. - Applied social research methods series. .
eng
Mail survey
001.433 / MAM
Mail Surveys : improving the quality - Theousand Oaks: Sage Publication, 1995 - xii,129p. - Applied social research methods series. .
eng
Mail survey
001.433 / MAM