Hillier, F. S., & Lieberman, G. J. (1994). Operations research (2d ed.). Holden-Day.
Lua i Stíl Chicago (17ú heag.)Hillier, Frederick S., agus Gerald J. Lieberman. Operations Research. 2d ed. San Francisco: Holden-Day, 1994.
Lua MLA (8ú heag.)Hillier, Frederick S., agus Gerald J. Lieberman. Operations Research. 2d ed. Holden-Day, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.