Allen, C. L. (1954). Problems in the theory of price. Prentice-Hall.
Dyfyniad Arddull ChicagoAllen, Clark Lee. Problems in the Theory of Price. Englewood Cliffs, N.J: Prentice-Hall, 1954.
Dyfyniad MLAAllen, Clark Lee. Problems in the Theory of Price. Prentice-Hall, 1954.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.