Cita APA (7th ed.)

Juliff, P. L. (1990). Program design (3rd ed.). Prentice-Hall.

Cita Chicago (17th ed.)

Juliff, Peter Laurence. Program Design. 3rd ed. New York: Prentice-Hall, 1990.

Cita MLA (9th ed.)

Juliff, Peter Laurence. Program Design. 3rd ed. Prentice-Hall, 1990.