Lang, D. W. (1977). Critical path analysis (2η έκδ.). Hodder and Stoughton.
Chicago Style (17th ed.) CitationLang, Douglas Wallace. Critical Path Analysis. 2η έκδ. Kent: Hodder and Stoughton, 1977.
MLA (8th ed.) CitationLang, Douglas Wallace. Critical Path Analysis. 2η έκδ. Hodder and Stoughton, 1977.
Warning: These citations may not always be 100% accurate.