Mortad, Mohammed Hichem, Introductory topology : exercises and solutions / by Mohammed Hichem Mortad (University of Oran, Algeria). - Hackensack , New Jersey : World Scientific, 2014. - xi,246p.: ISBN: 9789814583817 (pbk : alk. paper) Subjects--Topical Terms: Topology Dewey Class. No.: 514.076 / In