Mankiw, N. Gregory. Principles of economics / N. Gregory Mankiw. - Ninth edition. - Australia : : Cengage, 2021. - xxxl, 816 pages : illustrations ; 26 cm. Includes index. ISBN: 9789814922104 Pbk. Np. Subjects--Topical Terms: Economics. LC Class. No.: HB 171.5 M36 2021 LCLib