Mertler, Craig A. Action research : teachers as researchers in the classroom / Craig A. Mertler. - 2nd ed. - Los Angeles : Sage, c2009. - xxii, 265 p. : ill. ; 24 cm. ISBN: 9781412968577 (pbk.) Subjects--Topical Terms: Action research in education. Dewey Class. No.: 370.72 / MER P09A