Cita APA (7th ed.)

Crawley, J. W. (1988). Structured programming using pascal. Prentice-Hall.

Cita Chicago (17th ed.)

Crawley, J. Winston. Structured Programming Using Pascal. Englewood Cliffs, N.J: Prentice-Hall, 1988.

Cita MLA (9th ed.)

Crawley, J. Winston. Structured Programming Using Pascal. Prentice-Hall, 1988.