Cita APA

Shelly, G. B., Cashman, T. J., Green, S. L., & Boetcher, M. M. (1997). Microsoft PowerPoint 97: Introductory concepts and techniques. Course Technology.

Citación estilo Chicago

Shelly, Gary B., Thomas J. Cashman, Sherry L. Green, and Marvin M. Boetcher. Microsoft PowerPoint 97: Introductory Concepts and Techniques. Cambridge, Mass: Course Technology, 1997.

Cita MLA

Shelly, Gary B., et al. Microsoft PowerPoint 97: Introductory Concepts and Techniques. Course Technology, 1997.