Cita APA (7th ed.)
Heller, F. H. (2009). Steel helmet and mortarboard: An academic in Uncle Sam's Army. University of Missouri Press.
Cita Chicago (17th ed.)
Heller, Francis Howard. Steel Helmet and Mortarboard: An Academic in Uncle Sam's Army. Columbia: University of Missouri Press, 2009.
Cita MLA (9th ed.)
Heller, Francis Howard. Steel Helmet and Mortarboard: An Academic in Uncle Sam's Army. University of Missouri Press, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.