APA (7th ed.) Zitazioa
Heller, F. H. (2009). Steel helmet and mortarboard: An academic in Uncle Sam's Army. University of Missouri Press.
Chicago Style (17th ed.) Zitazioa
Heller, Francis Howard. Steel Helmet and Mortarboard: An Academic in Uncle Sam's Army. Columbia: University of Missouri Press, 2009.
MLA (9th ed.) Zitazioa
Heller, Francis Howard. Steel Helmet and Mortarboard: An Academic in Uncle Sam's Army. University of Missouri Press, 2009.
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