Slade, A. L., & Kascus, M. (2000). Library services for open and distance learning: The third annotated bibliography. Libraries Unlimited.
Cita Chicago (17th ed.)Slade, Alexander L., i Marie Kascus. Library Services for Open and Distance Learning: The Third Annotated Bibliography. Englewood, Colo: Libraries Unlimited, 2000.
Cita MLA (9th ed.)Slade, Alexander L., i Marie Kascus. Library Services for Open and Distance Learning: The Third Annotated Bibliography. Libraries Unlimited, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.