Elementary algebra :
Barnett, Raymond A.
Elementary algebra : structure and use /Raymond A. Barnett ; Thomas J. Kearns - 5th ed. - New York : McGraw-Hill Pub. Co., 1990. - 466p. : ill. ; 25cm
Elementary algebra : structure and use /Raymond A. Barnett ; Thomas J. Kearns - 5th ed. - New York : McGraw-Hill Pub. Co., 1990. - 466p. : ill. ; 25cm