Rifkin, S. B. (1985). Patent profiles: Robots. Patent and Trademark Office, Office of Technology Assessment and Forecast, U.S. Dept. of Commerce.
Cita Chicago (17th ed.)Rifkin, Susan B. Patent Profiles: Robots. Washington, D.C.: Patent and Trademark Office, Office of Technology Assessment and Forecast, U.S. Dept. of Commerce, 1985.
Cita MLA (8th ed.)Rifkin, Susan B. Patent Profiles: Robots. Patent and Trademark Office, Office of Technology Assessment and Forecast, U.S. Dept. of Commerce, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.