APA aipamena

Libbey. Alexander P. de Seversky and the Quest for Air Power. University of Nebraska Press.

Chicago Style aipamena

Libbey. Alexander P. De Seversky and the Quest for Air Power. University of Nebraska Press.

MLA aipamena

Libbey. Alexander P. De Seversky and the Quest for Air Power. University of Nebraska Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.