Silverman, H. (1964). The substance of economics: For the student and the general reader/16e (16th ed.). Pitman.
Dyfyniad Arddull ChicagoSilverman, H.A. The Substance of Economics: For the Student and the General Reader/16e. 16th ed. London: Pitman, 1964.
Dyfyniad MLASilverman, H.A. The Substance of Economics: For the Student and the General Reader/16e. 16th ed. Pitman, 1964.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.