00492 a2200193 4500 42389 42389 WUSLLib 201015b ||||| |||| 00| 0 eng d English 370.78 COH Cohen, Louis 20878 Research methods in education 3rd ed. New York: Routledge, 1980 xxii, 413p.; 21cm. Research 66 Education 1602 Manion, Lawrence 20879 SDC ddc 0 0 ddc 0 0 SDC MAIN MAIN REF 2009-01-29 1190.00 0 370.78COH 1664 2017-09-02 00:00:00 0.00 2016-10-31 SDC