Cita APA (7a ed.)

Portugal, F. H. (2000). Valuating information intangibles: Measuring the bottom-line contribution of librarians and information professionals. Special Libraries Association.

Cita Chicago Style (17a ed.)

Portugal, Frank H. Valuating Information Intangibles: Measuring the Bottom-line Contribution of Librarians and Information Professionals. Washington, D. C.: Special Libraries Association, 2000.

Cita MLA (8a ed.)

Portugal, Frank H. Valuating Information Intangibles: Measuring the Bottom-line Contribution of Librarians and Information Professionals. Special Libraries Association, 2000.