Dorfman, Robert. Prices and markets / Robert Dorfman. - 3d ed. - Englewood Cliffs, N.J. : Prentice-Hall, c1978. - viii, 264 p. : ill. ; 24 cm. Includes index. ISBN: 0136996116 LCCN: 77026772 LC Class. No.: HB171.5 .D6176 1978 / .D6176 1978 Dewey Class. No.: 338.5/2