Groves, Robert M.
Survey Methodology Robert M. Groves - 2nd ed. - New York John Wiley & Sons 2009 - xxi, 461p.
9780470465462
Social surveys -- Methodology
Surveys -- Methodology.
001.433 GRO
Survey Methodology Robert M. Groves - 2nd ed. - New York John Wiley & Sons 2009 - xxi, 461p.
9780470465462
Social surveys -- Methodology
Surveys -- Methodology.
001.433 GRO