Cita APA (7th ed.)
Olsen, W. S. (2013). Prairie sky: A pilot's reflections on flying and the grace of altitude. University of Missouri.
Cita Chicago (17th ed.)
Olsen, W. Scott. Prairie Sky: A Pilot's Reflections on Flying and the Grace of Altitude. Columbia, Mo.: University of Missouri, 2013.
Cita MLA (9th ed.)
Olsen, W. Scott. Prairie Sky: A Pilot's Reflections on Flying and the Grace of Altitude. University of Missouri, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.