Παραπομπή APA

Shaffer, L. a. (1965). Critical path method. mc Graw hill.

Παραπομπή Chicago Style

Shaffer, L.R...[et al.]. Critical Path Method. New york: mc Graw hill, 1965.

Παραπομπή MLA

Shaffer, L.R...[et al.]. Critical Path Method. mc Graw hill, 1965.