Cita APA (7a ed.)

Halladay, S., & Wiebel, M. (1993). Object-oriented software engineering. R & D.

Cita Chicago Style (17a ed.)

Halladay, Steve, y Michael Wiebel. Object-oriented Software Engineering. Lawrence, Kansas: R & D, 1993.

Cita MLA (9a ed.)

Halladay, Steve, y Michael Wiebel. Object-oriented Software Engineering. R & D, 1993.