APA (7th ed.) Citation

Shaffer, L. R., Meyer, W., & Ritter, J. (1965). The critical-path method. McGraw-Hill.

Chicago Style (17th ed.) Citation

Shaffer, Louis Richard, W.L Meyer, and J.B Ritter. The Critical-path Method. New York: McGraw-Hill, 1965.

MLA (9th ed.) Citation

Shaffer, Louis Richard, et al. The Critical-path Method. McGraw-Hill, 1965.