Spiegel, L., & Spiegel, L. (1991). Applied Statistics And Strength Of Materials Leonard Spiegel George F. Limbrunner. Macmillan Publishing Company.
Čikaški stil citiranja (17. izdanje)Spiegel, Leonard, i Leonard Spiegel. Applied Statistics And Strength Of Materials Leonard Spiegel George F. Limbrunner. Macmillan Publishing Company, 1991.
MLA način citiranja (8. izdanje)Spiegel, Leonard, i Leonard Spiegel. Applied Statistics And Strength Of Materials Leonard Spiegel George F. Limbrunner. Macmillan Publishing Company, 1991.
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