Nellis, Jospeh G. Principles of business economics / Joseph g. Nellis and David Parker. - 2nd ed. - New Delhi : Pearson Education, c2009. - 447 p. : ill. ; 25cm. ISBN: 9788131724279 325.00 Subjects--Topical Terms: Economics.Business economics.Managerial economics. Dewey Class. No.: 338.5024658