Cohen, Louis 1928- creator Manion, Lawrence. Morrison, Keith (Keith R. B.) enk London Routledge 2011 7th ed. eng xxii, 758 p. : ill. ; 26 cm. Louis Cohen, Lawrence Manion and Keith Morrison. Previous ed.: 2007. Includes bibliographical references and index. Education Research Methodology Education Research Great Britain Methodology Education Research methods Research Design 370.72 9780415583350 (hbk.) 0415583357 (hbk.) 9780415583367 (pbk.) 0415583365 (pbk.) StDuBDS 101011 20220621140554.0 136436426 eng