Educational research :
Gall, Meredith D.
Educational research : an introduction/ Meredith D. Gall, Walter R. Borg and Joyce P. Gall. - 6th ed. - New York : Longman Publishers, 1996. - xxii, 788p. : ill. ;
Includes bibliography and index.
0801309808 9780801309809
Education--research.
education --research --united States.
LB 1028 .G342 1996
Educational research : an introduction/ Meredith D. Gall, Walter R. Borg and Joyce P. Gall. - 6th ed. - New York : Longman Publishers, 1996. - xxii, 788p. : ill. ;
Includes bibliography and index.
0801309808 9780801309809
Education--research.
education --research --united States.
LB 1028 .G342 1996