Research methods in education /

Cohen, Louis, 1928-

Research methods in education / Louis Cohen and Lawrence Manion. - 3rd ed. - London ; New York, NY : Routledge, 1989. - xxii, 413 p. : ill. ; 22 cm.

0415036488 (U.S.)

88039815

LB1028 .C572 1989 / .C572 1989

370/.7/8
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