Introduction to research in education /
Ary, Donald.
Introduction to research in education / Donald Ary ... [et al.]. - 9th ed. - Belmont, Calif. : Wadsworth Cengage Learning, 2014 - xx, 700 p. : ill. (some col.) 26 cm.
Previous ed.: 2010.
9781133939610 (pbk.);1133939619 (pbk.);9781133596745;1133596746
Education
370.7
Introduction to research in education / Donald Ary ... [et al.]. - 9th ed. - Belmont, Calif. : Wadsworth Cengage Learning, 2014 - xx, 700 p. : ill. (some col.) 26 cm.
Previous ed.: 2010.
9781133939610 (pbk.);1133939619 (pbk.);9781133596745;1133596746
Education
370.7