Hamilton Standard. (1985). WTS-4 Wind turbine test program. EPRI.
Cita Chicago (17th ed.)Hamilton Standard. WTS-4 Wind Turbine Test Program. Palo Alto, Calif: EPRI, 1985.
Cita MLA (9th ed.)Hamilton Standard. WTS-4 Wind Turbine Test Program. EPRI, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.