Cita APA

Tiley, W. E., & Tiley, W. E. (1991). Clipper programmer's reference. Carmel, Ind.: QUE.

Citación estilo Chicago

Tiley, W. Edward, y W. Edward Tiley. Clipper Programmer's Reference. Carmel, Ind.: QUE, 1991.

Cita MLA

Tiley, W. Edward, y W. Edward Tiley. Clipper Programmer's Reference. Carmel, Ind.: QUE, 1991.