Cita APA (7a ed.)

Wrigley, C. D., & Dexter, A. S. (1991). A model for measuring information system size. [s.n.].

Cita Chicago Style (17a ed.)

Wrigley, Clive D., y Albert S. Dexter. A Model for Measuring Information System Size. [S.l.]: [s.n.], 1991.

Cita MLA (9a ed.)

Wrigley, Clive D., y Albert S. Dexter. A Model for Measuring Information System Size. [s.n.], 1991.