Cita APA (7a ed.)

Vargo, D. J. (1974). Wind energy developments in the 20 century. Lewis Research Center.

Cita Chicago Style (17a ed.)

Vargo, Donald J. Wind Energy Developments in the 20 Century. Cleveland, Ohio: Lewis Research Center, 1974.

Cita MLA (8a ed.)

Vargo, Donald J. Wind Energy Developments in the 20 Century. Lewis Research Center, 1974.