Frank, R. H. (2004). Principles of micro-economics. McGraw - Hill Irwin.
Dyfyniad Arddull ChicagoFrank, Robert H. Principles of Micro-economics. McGraw - Hill Irwin, 2004.
Dyfyniad MLAFrank, Robert H. Principles of Micro-economics. McGraw - Hill Irwin, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.