Research methods in education /
Cohen, Louis.
Research methods in education / Louis Cohen. - 7th ed. - USA : Routledge, c2011. - xxii. 758 p. : 25 cm.
9780415583367
Education--Research.
Education--Research--Great Britain.
LB 1028 / .C572 2011
Research methods in education / Louis Cohen. - 7th ed. - USA : Routledge, c2011. - xxii. 758 p. : 25 cm.
9780415583367
Education--Research.
Education--Research--Great Britain.
LB 1028 / .C572 2011