(1970). Mathematics: : creation and study of form. Addison-Wesley Publ. Comp.
Čikaški stil citiranja (17. izdanje)Mathematics: : Creation and Study of Form. Addison-Wesley Publ. Comp, 1970.
MLA način citiranja (8. izdanje)Mathematics: : Creation and Study of Form. Addison-Wesley Publ. Comp, 1970.
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