Cita APA (7a ed.)

Leary, W. M. (1990). Pilots' directions: The transcontinental airway and its history. University of Iowa Press.

Cita Chicago Style (17a ed.)

Leary, William M. Pilots' Directions: The Transcontinental Airway and Its History. Iowa City, IA: University of Iowa Press, 1990.

Cita MLA (8a ed.)

Leary, William M. Pilots' Directions: The Transcontinental Airway and Its History. University of Iowa Press, 1990.