Yin Robert K. Case study research design and methods - - Thousand Oaks; New Delhi Sage Publications 1994 - 171 p. 22 cm. - Applied social research method series; v. 5 . Social Sciences, Research, Research Design ISBN: 0803956622 Subjects--Topical Terms: Research DesignResearchSocial Sciences Dewey Class. No.: 300.72 / YIN