Cita APA (7a ed.)

Roskam, J. (1990). Airplane design. Part VIII: Airplane cost estimation: design, development, manufacturing and operating (3th. print.). DARcorporation.

Cita Chicago Style (17a ed.)

Roskam, Jan. Airplane Design. Part VIII: Airplane Cost Estimation: Design, Development, Manufacturing and Operating. 3th. print. Kansas: DARcorporation, 1990.

Cita MLA (8a ed.)

Roskam, Jan. Airplane Design. Part VIII: Airplane Cost Estimation: Design, Development, Manufacturing and Operating. 3th. print. DARcorporation, 1990.