Kiefer, W. J. (1961). Danger was no stranger. Queen's Work.
Čikaški stil citiranja (17. izdanje)Kiefer, William J. Danger Was No Stranger. St. Louis, Mo.: Queen's Work, 1961.
MLA način citiranja (8. izdanje)Kiefer, William J. Danger Was No Stranger. Queen's Work, 1961.
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