Perrault, G., & Ortzen, L. (1965). The secret of D-Day. Little, Brown.
Lua i Stíl Chicago (17ú heag.)Perrault, Giles, agus Len Ortzen. The Secret of D-Day. Boston: Little, Brown, 1965.
Lua MLA (9ú heag.)Perrault, Giles, agus Len Ortzen. The Secret of D-Day. Little, Brown, 1965.
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