Cita APA (7th ed.)

Schinkel, M., Kaster, J., & Borns, P. (1992). Programming in Clipper 5. Addison-Wesley.

Cita Chicago (17th ed.)

Schinkel, Mike, John Kaster, i Patricia Borns. Programming in Clipper 5. Reading: Addison-Wesley, 1992.

Cita MLA (9th ed.)

Schinkel, Mike, et al. Programming in Clipper 5. Addison-Wesley, 1992.