Childress, R. L. (1974). Sets, matrices, and linear programming. Prentice-Hall, Inc.
Lua i Stíl Chicago (17ú heag.)Childress, Robert L. Sets, Matrices, and Linear Programming. Englewood Cliffs, N.J: Prentice-Hall, Inc, 1974.
Lua MLA (9ú heag.)Childress, Robert L. Sets, Matrices, and Linear Programming. Prentice-Hall, Inc, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.