BUFFA, E. S. (1977). Management Science Operations Reseach Elwood S. Buffa And James S. Dyer. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)BUFFA, Elwood S. Management Science Operations Reseach Elwood S. Buffa And James S. Dyer. John Wiley & Sons, 1977.
Lua MLA (8ú heag.)BUFFA, Elwood S. Management Science Operations Reseach Elwood S. Buffa And James S. Dyer. John Wiley & Sons, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.