Cita APA (7a ed.)

Sullivan, T. L., Miller, D. R., & Spera, D. A. (1977). Drive train normal modes analysis for the ERDA/NASA 100-kilowatt wind turbine generator. National Aeronautics and Space Administration.

Cita Chicago Style (17a ed.)

Sullivan, T. L., D. R. Miller, y D. A. Spera. Drive Train Normal Modes Analysis for the ERDA/NASA 100-kilowatt Wind Turbine Generator. Cleveland: National Aeronautics and Space Administration, 1977.

Cita MLA (8a ed.)

Sullivan, T. L., et al. Drive Train Normal Modes Analysis for the ERDA/NASA 100-kilowatt Wind Turbine Generator. National Aeronautics and Space Administration, 1977.