Levin, R. I., & Kirkpatrick, C. A. (1966). Planning and control with PERT/CPM. McGraw-Hill ; Tata McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Levin, Richard I., agus Charles Atkinson Kirkpatrick. Planning and Control with PERT/CPM. New York ; New Delhi: McGraw-Hill ; Tata McGraw-Hill, 1966.
Lua MLA (8ú heag.)Levin, Richard I., agus Charles Atkinson Kirkpatrick. Planning and Control with PERT/CPM. McGraw-Hill ; Tata McGraw-Hill, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.