(1991). STS-39 space shuttle mission report / prepared by Robert W. Fricke.
Čikaški stil citiranja (17. izdanje)STS-39 Space Shuttle Mission Report / Prepared by Robert W. Fricke. 1991.
MLA način citiranja (9. izdanje)STS-39 Space Shuttle Mission Report / Prepared by Robert W. Fricke. 1991.
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