Childress, R. L. (1974). Sets, matrices, and linear programming. Prentice-Hall, Inc.
Dyfyniad Arddull ChicagoChildress, Robert L. Sets, Matrices, and Linear Programming. Englewood Cliffs, N.J: Prentice-Hall, Inc, 1974.
Dyfyniad MLAChildress, Robert L. Sets, Matrices, and Linear Programming. Prentice-Hall, Inc, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.