Essential grammar in use : A self-study reference a. practice b. for elementary students of Engl. : With answers / Raymond Murphy. - 2nd ed.. - Cambridge : Cambridge univ. press, [2001]. - 300p. : ill. ; 23cm.см.. - (New ed.). - Repr. of [1985] ed.. - ISBN 0-521-55928-6 : [n.p.][MFN: 14962]