APA (7th ed.) Citation

Davis, A. M. (1993). Software requirements: Objects, functions, and states. PTR Prentice-Hall.

Chicago Style (17th ed.) Citation

Davis, Alan M. Software Requirements: Objects, Functions, and States. Englewood Cliffs, New Jersey: PTR Prentice-Hall, 1993.

MLA (9th ed.) Citation

Davis, Alan M. Software Requirements: Objects, Functions, and States. PTR Prentice-Hall, 1993.