Educational research: a guide to the process/
Wallen. N.E.
Educational research: a guide to the process/ Norman E.Wallen ; Jack R. Fraenkel. - London: Lawrence Erlbaum associates, 2001. - xix,548p.: ill,: 24 cm
Includes bibliography references and index
9780805832808
DUCE LB1028.W275
Educational research: a guide to the process/ Norman E.Wallen ; Jack R. Fraenkel. - London: Lawrence Erlbaum associates, 2001. - xix,548p.: ill,: 24 cm
Includes bibliography references and index
9780805832808
DUCE LB1028.W275