एपीए उद्धरण

Lang, D. (1970). Critical Path Analysis. Teach Yourself Books.

शिकागो स्टाइल उद्धरण

Lang, Doughlas. Critical Path Analysis. London: Teach Yourself Books, 1970.

एमएलए उद्धरण

Lang, Doughlas. Critical Path Analysis. Teach Yourself Books, 1970.