Crabtree Benjamine F. Ed. Doing qualitative research - 2nd - Thousand Oaks Sage publications Inc. 1999 - xvii; 406 p. cm. ISBN: 0761914986 (pbk) Standard No.: 188,537 Source: Textual Subjects--Topical Terms: SOCIAL SCIENCES Dewey Class. No.: Sigma:(:f), N2;N9