Research methods in education /
Cohen, Louis.
Research methods in education / Louis Cohen and Lawrence Manion. - 4th edition. - London : Routledge, c1994. - 414 pages ; 23 cm.
Includes bibliographical references and index.
0415102359
Research methods in education / Louis Cohen and Lawrence Manion. - 4th edition. - London : Routledge, c1994. - 414 pages ; 23 cm.
Includes bibliographical references and index.
0415102359