Cita APA (7a ed.)

Sobral, H. A. J. (1994). IEEY project: The American sector.

Cita Chicago Style (17a ed.)

Sobral, H. A. J. IEEY Project: The American Sector. 1994.

Cita MLA (8a ed.)

Sobral, H. A. J. IEEY Project: The American Sector. 1994.