Mankiw, N. Gregory. Principles of economics / N. Gregory Mankiw. - 2nd ed. - Fort Worth, TX : Harcourt College Publishers, c2001. - xlviii, 837 p. : ill. (some col.) ; 27 cm. Includes index. ISBN: 0030259517 (hard cover) LCCN: 00102720 LC Class. No.: HB171.5 .M264 2001 / .M264 2001 Dewey Class. No.: 330