APA (7th ed.) Citation

Orr, K. T. (1977). Structured systems development. Yourdon Press.

Chicago Style (17th ed.) Citation

Orr, Kenneth T. Structured Systems Development. Englewood Cliffs, N. J: Yourdon Press, 1977.

MLA (9th ed.) Citation

Orr, Kenneth T. Structured Systems Development. Yourdon Press, 1977.