Del Val, J. D. (1972). Introductory linear programming for high school.
Lua i Stíl Chicago (17ú heag.)Del Val, Jesus D. Introductory Linear Programming for High School. 1972.
Lua MLA (9ú heag.)Del Val, Jesus D. Introductory Linear Programming for High School. 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.