By Fowler, Floyd J.. Los Angeles : Sage Publications, 2009 . x, 201 p. : 22 cm.. 9781412958417
]]>By Harrison, Michael I.. Thousand Oaks, Calif. : Sage Publications, 2005 . x, 181 p. : 23 cm.. 0761925716 (cloth) | 0761925724 (pbk.)
]]>By Yin, Robert K.. Thousand Oaks : Sage Publications, 1994 . xvii, 170 p. : 23 cm.. 0803956622 | 0803956630 (pbk.)
]]>By Yin, Robert K.. Thousand Oaks, Calif. : Sage Publications, 2003 . xvi, 181 p. : , Includes bibliographical references (p. 167-174) and index. 22 cm.. 0761925538
]]>By Yin, Robert K.. London : Sage Publications, 2009 . xiv, 219 p. : , Includes bibliographical references (p. 193-202) and index. 23 cm.. 9781412960991
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