Gall,, Meredith Damien
Educational research : an introduction / Meredith D. Gall, Joyce P. Gall, Walter R. Borg
Educational research : an introduction / Meredith D. Gall, Joyce P. Gall, Walter R. Borg
. - 8th ed
. - Boston : Pearson, cop. 2007
. - XXXI, 672 p. : il. 24 cm
0-205-48849-8 Brochado
37.012