CHURCHILL, R. V. Forier, series and boundary value problems#Ruel V. Churchill. McGraw Hill.
Čikaški stil citiranja (17. izdanje)CHURCHILL, Ruel V. Forier, Series and Boundary Value Problems#Ruel V. Churchill. McGraw Hill.
MLA način citiranja (8. izdanje)CHURCHILL, Ruel V. Forier, Series and Boundary Value Problems#Ruel V. Churchill. McGraw Hill.
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